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The patent EP2489956 was granted to Gerdes Holding on Sep 9, 2020. The application was filed on Feb 21, 2011 under application number EP11155224A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| STIEBEL ELTRON | Jan 5, 2018 | EISENFUHR SPEISER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202004012263U |
| OPPOSITION | DE2728564 |
| OPPOSITION | EP2226590 |
| OPPOSITION | EP2455680 |
| OPPOSITION | US2001008046 |
| OPPOSITION | US4756081 |
| OPPOSITION | US5483103 |
| SEARCH | DE19806017 |
| SEARCH | DE2728564 |
| SEARCH | DE3123036 |
| SEARCH | DE3143336 |
| SEARCH | US6055154 |
| SEARCH | US6892796 |
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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Aug 13, 2020
Aug 13, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
General enquiry
OPPO
Jul 31, 2020
Jul 21, 2020
Jul 16, 2020
Jun 3, 2020
May 18, 2020
Refund of fees
Search/Exam
May 7, 2020
(Electronic) Receipt
Appeal
May 7, 2020
May 7, 2020
May 7, 2020
May 7, 2020
May 4, 2020
May 4, 2020
Apr 28, 2020
Apr 20, 2020
Refund of fees
Search/Exam
Apr 20, 2020
Refund of fees
Search/Exam
Apr 16, 2020
Apr 16, 2020
Apr 15, 2020
Apr 15, 2020
Apr 8, 2020
(Electronic) Receipt
Appeal
Apr 8, 2020
Apr 8, 2020
Withdrawal of an appeal
Appeal
Apr 7, 2020
(Electronic) Receipt
Appeal
Apr 7, 2020
Apr 7, 2020
Apr 7, 2020
Withdrawal of an appeal
Appeal
Feb 26, 2020
Feb 14, 2020
(Electronic) Receipt
Appeal
Feb 14, 2020
Feb 14, 2020
Feb 14, 2020
Notice of appeal
Appeal
Feb 6, 2020
(Electronic) Receipt
Appeal
Feb 6, 2020
Feb 6, 2020
Feb 6, 2020
Notice of appeal
Appeal
Dec 16, 2019
Dec 13, 2019
Dec 11, 2019
Dec 6, 2019
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Means of redress
OPPO
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Claims
OPPO
Sep 12, 2019
Claims
OPPO
Sep 12, 2019
Claims
OPPO
Sep 12, 2019
Claims
OPPO
Sep 12, 2019
Claims
OPPO
Sep 12, 2019
Claims
OPPO
Sep 12, 2019
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Apr 5, 2017
Mar 9, 2017
Decision to grant a European patent
Search/Exam
Feb 23, 2017
Feb 14, 2017
Submission concerning representation
Search/Exam
Jan 26, 2017
(Electronic) Receipt
Search/Exam
Jan 26, 2017
English translation of the claims
Search/Exam
Jan 26, 2017
Filing of the translations of the claims
Search/Exam
Jan 26, 2017
French translation of claims
Search/Exam
Jan 26, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 20, 2016
Sep 20, 2016
Sep 20, 2016
Intention to grant (signatures)
Search/Exam
Sep 20, 2016
Text intended for grant (clean copy)
Search/Exam
Sep 20, 2016
Aug 5, 2016
Examination started
Search/Exam
Sep 24, 2015
Sep 18, 2015
General enquiry
Search/Exam
Feb 20, 2013
(Electronic) Receipt
Search/Exam
Feb 20, 2013
Feb 20, 2013
Feb 20, 2013
Feb 20, 2013
Feb 20, 2013
Amendments received before examination
Search/Exam
Feb 20, 2013
Letter concerning fees and payments
Search/Exam
Jan 11, 2013
Nov 7, 2012
Request for correction of the publication
Search/Exam
Oct 4, 2012
Correction to A-publication
Search/Exam
Sep 13, 2012
Request for correction of the publication
Search/Exam
Aug 27, 2012
Jul 25, 2012
Notification of forthcoming publication
Search/Exam
Jan 13, 2012
Jan 3, 2012
Aug 5, 2011
Aug 5, 2011
European search opinion
Search/Exam
Aug 5, 2011
European search report
Search/Exam
Feb 21, 2011
Abstract
Search/Exam
Feb 21, 2011
Feb 21, 2011
Claims
Search/Exam
Feb 21, 2011
Description
Search/Exam
Feb 21, 2011
Designation of inventor
Search/Exam
Feb 21, 2011
Designation of inventor
Search/Exam
Feb 21, 2011
Drawings
Search/Exam
Feb 21, 2011
Request for grant of a European patent
Search/Exam