Patent No. EP3439874 (titled "Thermoplastic Film For Vacuum Skin Packaging, Method Of Packaging And Uses Thereof") was filed by Cryovac on Apr 4, 2017. The application was issued on Jun 22, 2022.

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 |
|---|---|---|
| AMCOR FLEXIBLES NORTH AMERICA | Mar 22, 2023 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
| ISARPATENT PATENT UND RECHTSANWALTE BARTH HASSA PECKMANN UND PARTNER MBB | Mar 22, 2023 | ISARPATENT |
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.
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