Patent No. EP3577260 (titled "Detection Device On A Spinning Preparation Machine And Carding Bar Set Intended Therefor") was filed by Trtzschler on Dec 1, 2017. The application was issued on Oct 18, 2023.

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 |
|---|---|---|
| GROZ BECKERT | Jul 16, 2024 | WEBER |
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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