Compressed Hair Spray

Patent No. EP3528900 (titled "Compressed Hair Spray") was filed by Unilever on Oct 11, 2017. The application was issued on May 13, 2020.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
L'OREAL	Feb 3, 2021	CASALONGA

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

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Jan 15, 2026
Decision of the Board of Appeal
Jan 15, 2026
Decision of the Board of Appeal
Jan 15, 2026
F3032 Notification(s) of the decision
Jan 15, 2026
F3032 Notification(s) of the decision
Dec 1, 2025
F3013 Oral Proceedings: Forwarding minutes
Dec 1, 2025
F3013 Oral Proceedings: Forwarding minutes
Dec 1, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Dec 1, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Oct 9, 2025
F3345 Forwarding of submissions to parties
Oct 9, 2025
Oral proceedings: change of venue
Oct 9, 2025
Oral proceedings: change of venue
Oct 6, 2025
(Electronic) Receipt
Oct 6, 2025
Letter accompanying subsequently filed items
Oct 6, 2025
Letter dealing with oral proceedings during the appeal procedure
Sep 26, 2025
F3004 Communication of the Registry
Sep 18, 2025
F3018 Oral proceedings: Confirmation interpreters
Sep 18, 2025
F3345 Forwarding of submissions to parties
Sep 17, 2025
(Electronic) Receipt
Sep 17, 2025
Letter accompanying subsequently filed items
Sep 17, 2025
Request for interpreters during oral proceedings
Aug 26, 2025
Communication of the registration of a transfer or change of name and/or address
Aug 6, 2025
Annexes in respect of a client data request
Aug 6, 2025
Letter accompanying subsequently filed items
Aug 6, 2025
Submission concerning change of applicant's address
Jul 4, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 4, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 20, 2025
F3345 Forwarding of submissions to parties
May 15, 2025
(Electronic) Receipt
May 15, 2025
Letter accompanying subsequently filed items
May 15, 2025
Request for interpreters during oral proceedings
Oct 24, 2024
F3011.1 Oral Proceedings: summons
Oct 24, 2024
F3011.1 Oral Proceedings: summons
Oct 21, 2024
F3010 Oral proceedings: order for summons
Oct 21, 2024
F3303.16 Change of composition of the Board (T)
Oct 15, 2024
F3303.16 Change of composition of the Board (T)
Oct 9, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Oct 2, 2024
F3313 Order: change of Board due to the technical aspects of the appeal
May 1, 2024
Composition of the board (T)
Apr 24, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Apr 24, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Apr 19, 2024
F3313 Order: change of Board due to the technical aspects of the appeal
Aug 3, 2023
F3345 Forwarding of submissions to parties
Jul 28, 2023
(Electronic) Receipt
Jul 28, 2023
Letter accompanying subsequently filed items
Jul 28, 2023
Reply to appeal
Jul 19, 2023
F3345 Forwarding of submissions to parties
Jul 14, 2023
Communication confirming withdrawal from representation
Jul 14, 2023
Communication of amended entries concerning the representative
Jul 11, 2023
(Electronic) Receipt
Jul 11, 2023
Letter accompanying subsequently filed items
Jul 11, 2023
Submission concerning change of proprietor's representative
Mar 31, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Mar 27, 2023
(Electronic) Receipt
Mar 27, 2023
Letter accompanying subsequently filed items
Mar 27, 2023
Statement of grounds of appeal
Mar 27, 2023
Statement of grounds of appeal
Feb 9, 2023
F3204 Communication of the file number to the parties
Feb 9, 2023
F3204 Communication of the file number to the parties
Feb 2, 2023
(Electronic) Receipt
Feb 2, 2023
Letter accompanying subsequently filed items
Feb 2, 2023
Notice of appeal
Dec 20, 2022
Document concerning representation
Dec 9, 2022
Annex to the communication - opposition
Dec 9, 2022
Decision of the Opposition Division and instruction
Dec 9, 2022
Decision revoking the European patent
Dec 9, 2022
Decision revoking the European patent
Dec 9, 2022
Grounds for the decision (Annex) - opposition
Dec 9, 2022
Means of redress
Dec 9, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 9, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 9, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 9, 2022
Provision of a copy of the minutes - opposition procedure
Dec 9, 2022
Provision of a copy of the minutes - opposition procedure
Dec 9, 2022
Scanned annex to a communication - opposition procedure
Dec 9, 2022
Transmittal of decision / summons - opposition
Dec 9, 2022
Transmittal of decision / summons - opposition
Nov 15, 2022
Information about the result of oral proceedings
Sep 20, 2022
Brief communication - Opposition proceedings
Sep 16, 2022
Brief communication - Opposition proceedings
Sep 15, 2022
(Electronic) Receipt
Sep 15, 2022
Citation in opposition procedure - 015
Sep 15, 2022
Consolidated list of cited opposition documents
Sep 15, 2022
Letter accompanying subsequently filed items
Sep 15, 2022
Written submission in preparation to/during oral proceedings
Sep 13, 2022
(Electronic) Receipt
Sep 13, 2022
Any annexes (other than citation) to an opposition letter
Sep 13, 2022
Letter accompanying subsequently filed items
Sep 13, 2022
Written submission in preparation to/during oral proceedings
Jul 29, 2022
Notification concerning the date of oral proceedings
Jul 29, 2022
Notification concerning the date of oral proceedings
Jul 14, 2022
Brief communication - Opposition proceedings
Jul 14, 2022
Communication concerning the filing of a power of attorney
Jul 14, 2022
Communication of amended entries concerning the representative
Jul 7, 2022
(Electronic) Receipt
Jul 7, 2022
General authorisation
Jul 7, 2022
Letter accompanying subsequently filed items
Jul 7, 2022
Submission concerning change of proprietor's representative
May 17, 2022
Brief communication - Opposition proceedings
May 12, 2022
(Electronic) Receipt
May 12, 2022
Letter accompanying subsequently filed items
May 12, 2022
Request for interpreters during oral proceedings
Jan 24, 2022
Communication concerning corrected entries of the applicant
Nov 18, 2021
(Electronic) Receipt
Nov 18, 2021
Advice of delivery
Nov 18, 2021
Letter accompanying subsequently filed items
Nov 11, 2021
(Electronic) Receipt
Nov 11, 2021
Advice of delivery
Nov 11, 2021
Annex to the communication - opposition
Nov 11, 2021
Information concerning oral proceedings
Nov 11, 2021
Letter accompanying subsequently filed items
Nov 11, 2021
Summons to attend oral proceedings
Nov 11, 2021
Summons to attend oral proceedings
Nov 11, 2021
Transmittal of decision / summons - opposition
Nov 11, 2021
Transmittal of decision / summons - opposition
Sep 13, 2021
Brief communication - Opposition proceedings
Aug 30, 2021
Communication of the registration of a transfer or change of name and/or address
Aug 5, 2021
Letter accompanying subsequently filed items
Aug 5, 2021
Letter to the Legal Division
Jul 13, 2021
Brief communication - Opposition proceedings
Jul 8, 2021
(Electronic) Receipt
Jul 8, 2021
Auxiliary request during Opposition procedure
Jul 8, 2021
Auxiliary request during Opposition procedure
Jul 8, 2021
Auxiliary request during Opposition procedure - 01
Jul 8, 2021
Auxiliary request during Opposition procedure - 02
Jul 8, 2021
Letter accompanying subsequently filed items
Jul 8, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jun 29, 2021
Communication from the Legal Division
Jun 1, 2021
Annex
Jun 1, 2021
Annex
Jun 1, 2021
Letter accompanying subsequently filed items
Jun 1, 2021
Letter to the Legal Division
May 31, 2021
Annex
May 31, 2021
Cover sheet for fax transmission
May 28, 2021
Annex
May 28, 2021
Cover sheet for fax transmission
May 28, 2021
Letter to the Legal Division
Mar 31, 2021
Communication from the Legal Division
Mar 24, 2021
Annexes in respect of a client data request
Mar 24, 2021
Letter accompanying subsequently filed items
Mar 24, 2021
Submission concerning a transfer of rights (applicant)
Mar 23, 2021
Annexes in respect of a client data request
Mar 23, 2021
Annexes in respect of a client data request
Mar 23, 2021
Annexes in respect of a client data request
Mar 23, 2021
Annexes in respect of a client data request
Mar 23, 2021
Letter accompanying subsequently filed items
Mar 23, 2021
Submission concerning a transfer of rights (applicant)
Mar 16, 2021
Annexes in respect of a client data request
Mar 16, 2021
Letter accompanying subsequently filed items
Mar 16, 2021
Submission concerning a transfer of rights (applicant)
Mar 12, 2021
Communication from the Legal Division
Mar 10, 2021
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Mar 10, 2021
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Mar 5, 2021
Annexes in respect of a client data request
Mar 5, 2021
Annexes in respect of a client data request
Mar 5, 2021
Annexes in respect of a client data request
Mar 5, 2021
Annexes in respect of a client data request
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Letter accompanying subsequently filed items
Mar 5, 2021
Submission concerning a transfer of rights (applicant)
Mar 5, 2021
Submission concerning a transfer of rights (applicant)
Mar 5, 2021
Submission concerning a transfer of rights (applicant)
Mar 5, 2021
Submission concerning a transfer of rights (applicant)
Feb 26, 2021
Communication of a notice of opposition and request to file observations
Feb 26, 2021
Notice of further oppositions to opponent(s)
Feb 11, 2021
Communication of a notice of opposition - first information to patent proprietor
Feb 3, 2021
(Electronic) Receipt
Feb 3, 2021
Citation in opposition procedure - 001
Feb 3, 2021
Citation in opposition procedure - 002
Feb 3, 2021
Citation in opposition procedure - 003
Feb 3, 2021
Citation in opposition procedure - 004
Feb 3, 2021
Citation in opposition procedure - 005
Feb 3, 2021
Citation in opposition procedure - 006
Feb 3, 2021
Citation in opposition procedure - 007
Feb 3, 2021
Citation in opposition procedure - 008
Feb 3, 2021
Citation in opposition procedure - 009
Feb 3, 2021
Citation in opposition procedure - 010
Feb 3, 2021
Citation in opposition procedure - 011
Feb 3, 2021
Citation in opposition procedure - 012
Feb 3, 2021
Citation in opposition procedure - 013
Feb 3, 2021
Citation in opposition procedure - 014
Feb 3, 2021
International publication (Pamphlet)
Feb 3, 2021
Notice of opposition
Feb 3, 2021
Notice of opposition
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Annexes in respect of a client data request
Feb 1, 2021
Letter accompanying subsequently filed items
Feb 1, 2021
Submission concerning a transfer of rights (applicant)
Oct 1, 2020
Document concerning representation
May 26, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 17, 2020
Decision to grant a European patent
Mar 24, 2020
(Electronic) Receipt
Mar 24, 2020
Filing of the translations of the claims
Mar 24, 2020
French translation of claims
Mar 24, 2020
German translation of the claims
Dec 11, 2019
Bibliographic data of the European patent application
Dec 11, 2019
Communication about intention to grant a European patent
Dec 11, 2019
Intention to grant (signatures)
Dec 11, 2019
Text intended for grant (clean copy)
Dec 11, 2019
Text intended for grant (version for approval)
Nov 18, 2019
Examination started
Sep 11, 2019
Request for change of applicant's representative
Jul 31, 2019
Notification on forthcoming publication of bibliographic data
May 24, 2019
Communication to designated inventor
May 24, 2019
Communication to designated inventor
May 24, 2019
Communication to designated inventor
May 24, 2019
Communication to designated inventor
May 24, 2019
Communication to designated inventor
May 24, 2019
Communication to designated inventor
May 21, 2019
Priority search results copy provided by EPO
May 10, 2019
Copy of the international preliminary examination report
Apr 29, 2019
Information regarding early processing
Apr 3, 2019
(Electronic) Receipt
Apr 3, 2019
Request for entry into the European phase
Mar 1, 2019
Annex to International preliminary examination report
Mar 1, 2019
Information on entry into European phase
Mar 1, 2019
International preliminary examination report
Mar 1, 2019
International preliminary examination report - free text sheet
Mar 1, 2019
International preliminary examination report - free text sheet
Mar 1, 2019
International preliminary examination report - points I-VIII
Mar 1, 2019
Transmittal of International Preliminary Examination Report
Feb 14, 2019
(Electronic) Receipt
Feb 14, 2019
Incoming letter related to PCT RO
Feb 14, 2019
Letter regarding PCTII procedure
Feb 14, 2019
Submission concerning representation
Jan 8, 2019
Notification of the recording of a change
Jan 8, 2019
Notification of the recording of a change
Jan 8, 2019
Notification of the recording of a change
Jan 8, 2019
Notification of the recording of a change
Dec 6, 2018
(Electronic) Receipt
Dec 6, 2018
Letter regarding PCTII procedure
Dec 6, 2018
Letter regarding PCTII procedure
Dec 6, 2018
Submission concerning representation
Dec 3, 2018
(Electronic) Receipt
Dec 3, 2018
Letter regarding PCTII procedure
Dec 3, 2018
Reply to communication PCT/IPEA/408
Oct 9, 2018
Notification of election of EPO
Oct 2, 2018
Written opinion
Oct 2, 2018
Written opinion - free text sheet
Oct 2, 2018
Written opinion - points I-VIII
Sep 26, 2018
Amendments of documents (Article 19 PCT) (without attachments)
Aug 23, 2018
Notification of receipt of demand
Aug 17, 2018
(Electronic) Receipt
Aug 17, 2018
Letter regarding PCTII procedure
Aug 17, 2018
PCT demand form
Aug 17, 2018
Reply to International Search Opinion
May 16, 2018
Priority document (electronically transmitted)
Apr 26, 2018
Copy of the international search report
Apr 26, 2018
Published international application - A1
Jan 30, 2018
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
Nov 29, 2017
ISR: cited documents
Nov 28, 2017
Written opinion of the ISA, boxes No. I to VIII
Nov 28, 2017
Written opinion of the ISA, cover sheet
Nov 28, 2017
Written opinion of the ISA, supplemental box
Oct 26, 2017
Notification of receipt of Search copy
Oct 25, 2017
Notification of the international application number and of the international filing date
Oct 20, 2017
Request form for international application (copy for ISA/EP)
Oct 11, 2017
(Electronic) Receipt
Oct 11, 2017
Abstract
Oct 11, 2017
Claims
Oct 11, 2017
Description
Oct 11, 2017
Document concerning fees and payments
Oct 11, 2017
Drawings
Oct 11, 2017
Electronic request for grant of an International application
Oct 11, 2017
Incoming communication concerning PCT Direct
Oct 11, 2017
Priority document (RO-procedure)

EP3528900

UNILEVER

Application Number: EP17783482A
Filing Date: Oct 11, 2017
Status: Granted And Under Opposition; Apr 10, 2020
Publication Date: May 13, 2020
External Links: Slate, Register , Google Patents

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Compressed Hair Spray

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Dossier Documents

EP3528900