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EP3334581

CMI ENGINEERING
Application Number
EP16794030A
Filing Date
Sep 15, 2016
Status
Revoked
Oct 14, 2022
Grant Date
Nov 4, 2020
External Links
Slate, Register, Google Patents

Biblio Summary

The patent EP3334581B1 was granted on Nov 4, 2020 by CMI Engineering The patent is currently Revoked.

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.

CompanyOpposition DateOpposition Status

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WECKERLEJul 29, 2021 N/A

Patent citations in opposition refer to prior patents or publications that may challenge the validity of a contested patent. These references help assess whether the invention is truly novel or overlaps with existing intellectual property.

Citation PhasePatent NumberPatent LinkCited Text
OppositionFR1137441
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OppositionCH331696
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OppositionDE1279318
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OppositionDE1586111
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OppositionDE2352175
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OppositionUS4634368
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OppositionEP0223602
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OppositionEP0135861
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OppositionJPH02291805
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OppositionJPH03297406
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OppositionJPH0686714
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OppositionFR2737395
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OppositionDE69503842T
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OppositionWO0191605
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OppositionDE69913975T
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OppositionEP1437062
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OppositionEP2500011
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OppositionJP5270137B
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OppositionWO2014124916
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Dossier Documents of the Patent

The dossier documents provide a comprehensive record of the patent’s prosecution history, including filings, correspondence, and decisions made by patent offices. These documents are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination. It also includes the oppositions documents filed against the patent.