Sliding Closure For A Vessel Containing Molten Metal

Patent No. EP3424618 (titled "Sliding Closure For A Vessel Containing Molten Metal") was filed by Refractory on Jul 5, 2017. The application was issued on Mar 10, 2021.

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
VESUVIUS GROUP	Dec 10, 2021	BROHEZ

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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Jul 16, 2025
Refund of fees
Jul 10, 2025
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Jul 10, 2025
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Jul 8, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jul 8, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jul 3, 2025
F3014 Oral Proceedings: Order cancelling/postponing
Jul 3, 2025
F3345 Forwarding of submissions to parties
Jul 2, 2025
(Electronic) Receipt
Jul 2, 2025
Letter accompanying subsequently filed items
Jul 2, 2025
Withdrawal of an appeal
Jun 27, 2025
(Electronic) Receipt
Jun 27, 2025
Letter accompanying subsequently filed items
Jun 27, 2025
Letter dealing with oral proceedings during the appeal procedure
Jun 23, 2025
F3018 Oral proceedings: Confirmation interpreters
Jun 23, 2025
F3018 Oral proceedings: Confirmation interpreters
Jun 6, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jun 6, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jan 24, 2025
F3011.1 Oral Proceedings: summons
Jan 24, 2025
F3011.1 Oral Proceedings: summons
Jan 21, 2025
F3010 Oral proceedings: order for summons
Jul 16, 2024
Composition of the board (T)
Feb 26, 2024
F3345 Forwarding of submissions to parties
Feb 20, 2024
(Electronic) Receipt
Feb 20, 2024
Letter accompanying subsequently filed items
Feb 20, 2024
Reply to appeal
Oct 25, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Oct 19, 2023
(Electronic) Receipt
Oct 19, 2023
Auxiliary request during appeals procedure - 02
Oct 19, 2023
Auxiliary request during appeals procedure - 04
Oct 19, 2023
Auxiliary request during appeals procedure - 09
Oct 19, 2023
Letter accompanying subsequently filed items
Oct 19, 2023
Statement of grounds of appeal
Aug 23, 2023
F3204 Communication of the file number to the parties
Aug 23, 2023
F3204 Communication of the file number to the parties
Aug 17, 2023
(Electronic) Receipt
Aug 17, 2023
Letter accompanying subsequently filed items
Aug 17, 2023
Notice of appeal
Jun 28, 2023
Advice of delivery
Jun 20, 2023
(Electronic) Receipt
Jun 20, 2023
Advice of delivery
Jun 20, 2023
Letter accompanying subsequently filed items
Jun 19, 2023
Annex to the communication - opposition
Jun 19, 2023
Decision of the Opposition Division and instruction
Jun 19, 2023
Decision revoking the European patent
Jun 19, 2023
Decision revoking the European patent
Jun 19, 2023
Grounds for the decision (Annex) - opposition
Jun 19, 2023
Means of redress
Jun 19, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jun 19, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jun 19, 2023
Provision of a copy of the minutes - opposition procedure
Jun 19, 2023
Provision of a copy of the minutes - opposition procedure
Jun 19, 2023
Scanned annex to a communication - opposition procedure
Jun 19, 2023
Transmittal of decision / summons - opposition
Jun 19, 2023
Transmittal of decision / summons - opposition
May 12, 2023
Brief communication - Opposition proceedings
May 11, 2023
Information about the result of oral proceedings
May 10, 2023
(Electronic) Receipt
May 10, 2023
Authorisation
May 10, 2023
Letter accompanying subsequently filed items
Apr 27, 2023
(Electronic) Receipt
Mar 16, 2023
Brief communication - Opposition proceedings
Mar 15, 2023
Brief communication - Opposition proceedings
Mar 15, 2023
Brief communication - Opposition proceedings
Mar 13, 2023
Request for interpreters during oral proceedings
Mar 9, 2023
(Electronic) Receipt
Mar 9, 2023
(Electronic) Receipt
Mar 9, 2023
Any annexes (other than citation) to an opposition letter
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Auxiliary request during Opposition procedure
Mar 9, 2023
Letter accompanying subsequently filed items
Mar 9, 2023
Letter accompanying subsequently filed items
Mar 9, 2023
Written submission in preparation to/during oral proceedings
Mar 9, 2023
Written submission in preparation to/during oral proceedings
Dec 6, 2022
Notification concerning the date of oral proceedings
Dec 6, 2022
Notification concerning the date of oral proceedings
Nov 18, 2022
(Electronic) Receipt
Nov 18, 2022
Advice of delivery
Nov 18, 2022
Letter accompanying subsequently filed items
Nov 15, 2022
Communication about missing advice of delivery
Oct 11, 2022
Advice of delivery
Oct 5, 2022
Annex to the communication - opposition
Oct 5, 2022
Information concerning oral proceedings
Oct 5, 2022
Scanned annex to a communication - opposition procedure
Oct 5, 2022
Summons to attend oral proceedings
Oct 5, 2022
Summons to attend oral proceedings
Oct 5, 2022
Transmittal of decision / summons - opposition
Oct 5, 2022
Transmittal of decision / summons - opposition
May 16, 2022
Brief communication - Opposition proceedings
May 11, 2022
(Electronic) Receipt
May 11, 2022
Auxiliary request during Opposition procedure
May 11, 2022
Letter accompanying subsequently filed items
May 11, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jan 3, 2022
Communication of a notice of opposition and request to file observations
Jan 3, 2022
Notice of further oppositions to opponent(s)
Dec 17, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 14, 2021
Consolidated list of cited opposition documents
Dec 10, 2021
(Electronic) Receipt
Dec 10, 2021
Citation in opposition procedure - 001
Dec 10, 2021
Citation in opposition procedure - 002
Dec 10, 2021
Citation in opposition procedure - 003
Dec 10, 2021
Letter accompanying subsequently filed items
Dec 10, 2021
Notice of opposition
Mar 22, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 11, 2021
Decision to grant a European patent
Feb 2, 2021
(Electronic) Receipt
Feb 2, 2021
English translation of the claims
Feb 2, 2021
Filing of the translations of the claims
Feb 2, 2021
French translation of claims
Nov 10, 2020
Bibliographic data of the European patent application
Nov 10, 2020
Communication about intention to grant a European patent
Nov 10, 2020
Intention to grant (signatures)
Nov 10, 2020
Text intended for grant (clean copy)
Nov 10, 2020
Text intended for grant (version for approval)
Sep 24, 2020
Claims
Sep 24, 2020
Reply to communication from the Examining Division
Sep 17, 2020
Claims
Sep 17, 2020
Reply to communication from the Examining Division
Sep 15, 2020
Claims
Sep 15, 2020
Reply to communication from the Examining Division
Jul 14, 2020
Request for extension of time limit to communication from the Examining Division
Jul 13, 2020
Grant of extension of time limit (examination procedure)
Jul 7, 2020
Request for extension of time limit to communication from the Examining Division
Mar 6, 2020
Annex to the communication
Mar 6, 2020
Communication from the Examining Division
Mar 2, 2020
Claims
Mar 2, 2020
Reply to communication from the Examining Division
Feb 13, 2020
Claims
Feb 13, 2020
Reply to communication from the Examining Division
Oct 9, 2019
Annex to the communication
Oct 9, 2019
Communication from the Examining Division
Oct 3, 2019
Examination started
Jul 19, 2019
Amended claims filed after receipt of (European) search report
Jul 19, 2019
Amended description filed after receipt of (European) search report
Jul 19, 2019
Amendments received before examination
Jul 9, 2019
Amended claims filed after receipt of (European) search report
Jul 9, 2019
Amended description filed after receipt of (European) search report
Jul 9, 2019
Amendments received before examination
Jan 14, 2019
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Dec 12, 2018
Notification of forthcoming publication
Dec 19, 2017
Communication regarding the transmission of the European search report
Dec 19, 2017
European search opinion
Dec 19, 2017
European search report
Dec 19, 2017
Information on Search Strategy
Dec 8, 2017
Search started
Aug 28, 2017
Communication to designated inventor
Aug 21, 2017
Designation of inventor
Aug 21, 2017
Letter concerning the inventor
Aug 15, 2017
Designation of inventor
Aug 15, 2017
Letter concerning the inventor
Aug 7, 2017
Deficiency in designation of inventor
Jul 5, 2017
Abstract
Jul 5, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jul 5, 2017
Claims
Jul 5, 2017
Description
Jul 5, 2017
Drawings
Jul 5, 2017
Request for grant of a European patent

EP3424618

REFRACTORY

Application Number: EP17179692A
Filing Date: Jul 5, 2017
Status: Revoked; Jul 18, 2025
Publication Date: Mar 10, 2021
External Links: Slate, Register , Google Patents

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Sliding Closure For A Vessel Containing Molten Metal

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Dossier Documents

EP3424618