Thick Stock Valve

Patent No. EP3497329 (titled "Thick Stock Valve") was filed by Putzmeister Engineering on Aug 4, 2017. The application was issued on Apr 1, 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
SCHWING	Dec 23, 2020	SCHNEIDERS & BEHRENDT BOCHUM

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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Nov 23, 2022
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Nov 23, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Nov 18, 2022
Termination of the opposition proceedings with maintenance of patent
Aug 17, 2022
Advice of delivery
Aug 11, 2022
Advice of delivery
Aug 9, 2022
Decision rejecting the opposition
Aug 9, 2022
Decision rejecting the opposition
Aug 9, 2022
Grounds for the decision (Annex) - opposition
Aug 9, 2022
Means of redress
Aug 9, 2022
Scanned annex to a communication - opposition procedure
Aug 9, 2022
Transmittal of decision / summons - opposition
Aug 9, 2022
Transmittal of decision / summons - opposition
Aug 3, 2022
Decision of the Opposition Division and instruction
Jul 8, 2022
Brief communication - Opposition proceedings
Jul 4, 2022
Notification concerning the date of oral proceedings
Jul 4, 2022
Notification concerning the date of oral proceedings
Jun 30, 2022
(Electronic) Receipt
Jun 30, 2022
Letter accompanying subsequently filed items
Jun 30, 2022
Written submission in preparation to/during oral proceedings
Jun 20, 2022
Brief communication - Opposition proceedings
Jun 14, 2022
(Electronic) Receipt
Jun 14, 2022
Amended description with annotations
Jun 14, 2022
Description
Jun 14, 2022
Letter accompanying subsequently filed items
Jun 14, 2022
Written submission in preparation to/during oral proceedings
May 19, 2022
Brief communication - Opposition proceedings
May 18, 2022
Brief communication - Opposition proceedings
May 12, 2022
(Electronic) Receipt
May 12, 2022
Letter accompanying subsequently filed items
May 12, 2022
Withdrawal of a request for oral proceedings
May 10, 2022
(Electronic) Receipt
May 10, 2022
Letter accompanying subsequently filed items
May 10, 2022
Written submission in preparation to/during oral proceedings
May 9, 2022
Brief communication - Opposition proceedings
Apr 27, 2022
(Electronic) Receipt
Apr 27, 2022
Letter accompanying subsequently filed items
Apr 27, 2022
Written submission in preparation to/during oral proceedings
Apr 14, 2022
Notification concerning the date of oral proceedings
Apr 14, 2022
Notification concerning the date of oral proceedings
Jan 7, 2022
Advice of delivery
Jan 6, 2022
Advice of delivery
Jan 4, 2022
Annex to the communication - opposition
Jan 4, 2022
Information concerning oral proceedings
Jan 4, 2022
Summons to attend oral proceedings
Jan 4, 2022
Summons to attend oral proceedings
Jan 4, 2022
Transmittal of decision / summons - opposition
Jan 4, 2022
Transmittal of decision / summons - opposition
Aug 5, 2021
Brief communication - Opposition proceedings
Aug 2, 2021
(Electronic) Receipt
Aug 2, 2021
Auxiliary request during Opposition procedure
Aug 2, 2021
Auxiliary request during Opposition procedure - 05
Aug 2, 2021
Letter accompanying subsequently filed items
Aug 2, 2021
Letter regarding the opposition procedure (no time limit)
Jun 10, 2021
Brief communication - Opposition proceedings
Jun 3, 2021
(Electronic) Receipt
Jun 3, 2021
Auxiliary request during Opposition procedure
Jun 3, 2021
Auxiliary request during Opposition procedure
Jun 3, 2021
Auxiliary request during Opposition procedure
Jun 3, 2021
Auxiliary request during Opposition procedure
Jun 3, 2021
Auxiliary request during Opposition procedure - 01
Jun 3, 2021
Auxiliary request during Opposition procedure - 02
Jun 3, 2021
Auxiliary request during Opposition procedure - 03
Jun 3, 2021
Auxiliary request during Opposition procedure - 04
Jun 3, 2021
Letter accompanying subsequently filed items
Jun 3, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jan 26, 2021
Communication of a notice of opposition and request to file observations
Jan 26, 2021
Notice of further oppositions to opponent(s)
Jan 13, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 23, 2020
(Electronic) Receipt
Dec 23, 2020
Citation in opposition procedure - 001
Dec 23, 2020
Citation in opposition procedure - 002
Dec 23, 2020
Citation in opposition procedure - 003
Dec 23, 2020
Citation in opposition procedure - 004
Dec 23, 2020
Citation in opposition procedure - 004
Dec 23, 2020
Citation in opposition procedure - 005
Dec 23, 2020
Citation in opposition procedure - 006
Dec 23, 2020
Citation in opposition procedure - 007
Dec 23, 2020
Citation in opposition procedure - 008
Dec 23, 2020
Citation in opposition procedure - 009
Dec 23, 2020
Citation in opposition procedure - 010
Dec 23, 2020
Citation in opposition procedure - 010
Dec 23, 2020
Citation in opposition procedure - 011
Dec 23, 2020
Citation in opposition procedure - 012
Dec 23, 2020
Citation in opposition procedure - 013
Dec 23, 2020
Citation in opposition procedure - 014
Dec 23, 2020
Citation in opposition procedure - 015
Dec 23, 2020
Citation in opposition procedure - 016
Dec 23, 2020
Citation in opposition procedure - 017
Dec 23, 2020
Citation in opposition procedure - 018
Dec 23, 2020
Citation in opposition procedure - 019
Dec 23, 2020
Citation in opposition procedure - 020
Dec 23, 2020
Citation in opposition procedure - 021
Dec 23, 2020
Consolidated list of cited opposition documents
Dec 23, 2020
Notice of opposition
Dec 23, 2020
Notice of opposition
Apr 15, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 5, 2020
Decision to grant a European patent
Feb 21, 2020
(Electronic) Receipt
Feb 21, 2020
English translation of the claims
Feb 21, 2020
French translation of claims
Feb 21, 2020
Letter accompanying subsequently filed items
Dec 10, 2019
Bibliographic data of the European patent application
Dec 10, 2019
Communication about intention to grant a European patent
Dec 10, 2019
Intention to grant (signatures)
Dec 10, 2019
Text intended for grant (clean copy)
Dec 10, 2019
Text intended for grant (version for approval)
Nov 20, 2019
Examination started
Sep 6, 2019
(Electronic) Receipt
Sep 6, 2019
Amended claims filed after receipt of (European) search report
Sep 6, 2019
Amended claims with annotations
Sep 6, 2019
Amended description filed after receipt of (European) search report
Sep 6, 2019
Amended description with annotations
Sep 6, 2019
Amendments received before examination
Sep 6, 2019
Letter accompanying subsequently filed items
May 22, 2019
Notification on forthcoming publication of bibliographic data
Mar 27, 2019
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Mar 20, 2019
Priority search results copy provided by EPO
Mar 15, 2019
Communication to designated inventor
Feb 27, 2019
Copy of the international preliminary report on patentability
Feb 14, 2019
(Electronic) Receipt
Feb 14, 2019
Amended claims filed after receipt of (European) search report
Feb 14, 2019
Amended claims with annotations
Feb 14, 2019
Amended description filed after receipt of (European) search report
Feb 14, 2019
Amended description with annotations
Feb 14, 2019
Request for entry into the European phase
Dec 19, 2018
Information on entry into European phase
Mar 5, 2018
Priority document (electronically transmitted)
Feb 15, 2018
Copy of the international search report
Feb 15, 2018
Copy of the international search report
Feb 15, 2018
Published international application - A1
Nov 13, 2017
Written opinion of the ISA, boxes No. I to VIII
Nov 13, 2017
Written opinion of the ISA, cover sheet
Nov 13, 2017
Written opinion of the ISA, supplemental box
Nov 10, 2017
ISR: cited documents
Nov 10, 2017
International Search Report - copy in English for the IB
Aug 18, 2017
Notification of receipt of Search copy
Aug 17, 2017
Notification of the international application number and of the international filing date
Aug 11, 2017
Request form for international application (copy for ISA/EP)
Aug 4, 2017
(Electronic) Receipt
Aug 4, 2017
Abstract
Aug 4, 2017
Claims
Aug 4, 2017
Description
Aug 4, 2017
Document concerning fees and payments
Aug 4, 2017
Drawings
Aug 4, 2017
Electronic request for grant of an International application
Aug 4, 2017
Electronic request for grant of an International application
Aug 4, 2017
Incoming letter related to PCT RO
Aug 4, 2017
Letter concerning fees and payments
Aug 4, 2017
Priority document (RO-procedure)

EP3497329

PUTZMEISTER ENGINEERING

Application Number: EP17748765A
Filing Date: Aug 4, 2017
Status: Opposition Rejected; Nov 25, 2022
Publication Date: Apr 1, 2020
External Links: Slate, Register , Google Patents

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Thick Stock Valve

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Dossier Documents

EP3497329