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Cellulose Acetate And Cellulose Acetate Composition

PatentPatent Analysis

EP3862388

DAICEL
Application Number
EP19888249A
Filing Date
Dec 9, 2019
Status
Granted And Under Opposition
Jun 23, 2023
Grant Date
Jul 26, 2023
External Links
Slate, Register, Google Patents
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Bibliography

The patent EP3862388B1 was granted to Daicel on Jul 26, 2023 following the initial filing on Dec 9, 2019 under the application number EP19888249A . The current legal status of the patent is Granted And Under Opposition.

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Patent Oppositions filed by Competitors

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.

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ACETATEApr 26, 2024ADMISSIBLE
CERDIAApr 26, 2024ADMISSIBLE

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.

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