Patent No. EP3504040 (titled "Pencil Comprising An Integrally Injection-Moulded Layered Casing") was filed by AW Faber Castell Cosmetics on Aug 28, 2017. The application was issued on Nov 16, 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 |
|---|---|---|
| FA SCHWANHAUSSER INDUSTRIE HOLDING | Aug 16, 2023 | HOEFER & PARTNER PATENTANWALTE MBB |
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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