The patent EP3320942 was granted to Drgerwerk on Oct 8, 2025. The application was originally filed on Aug 5, 2008 under application number EP17205818A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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| Citation Phase | Reference Text | Link |
|---|---|---|
| OPPOSITION | - Flitney Robert, "2.3.2 X section rings. Figure 2.17", Seals and Sealing Handbook. 5fth Edition, Elsevier, (20070101), pages 27 - 28, ISBN 978-1-85617-461-9, XP093150975 | - |
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Sep 11, 2025
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Decision to grant a European patent
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Feb 10, 2023
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Feb 10, 2023
French translation of claims
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Feb 10, 2023
German translation of the claims
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Feb 10, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Letter accompanying subsequently filed items
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Annex to the communication
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Summons to attend oral proceedings
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Mar 5, 2021
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Observations by third parties
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Patent document filed by a Third party
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Amended claims with annotations
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Claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Nov 27, 2019
(Electronic) Receipt
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Nov 27, 2019
Letter accompanying subsequently filed items
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Observations by third parties
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Amended claims with annotations
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Amended description with annotations
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Claims
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Description
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Submission concerning representation
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Feb 5, 2019
Annex to the communication
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Feb 5, 2019
Communication from the Examining Division
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Examination started
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Notification of forthcoming publication
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Refund of fees
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European search opinion
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European search report
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Information on Search Strategy
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Search started
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Communication to designated inventor
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Abstract
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Claims
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Description
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Designation of inventor
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Dec 7, 2017
Drawings
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Dec 7, 2017
Request for grant of a European patent
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Aug 14, 2008
Letter concerning the priority
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Aug 14, 2008
Priority document
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