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A Process For The Continuous Preparation Of Alpha-Calcium Sulphate Hemihydrate And A Particulate Gypsum - EP4059904
The patent EP4059904 was granted to Saint Gobain on Sep 6, 2023. The application was originally filed on Mar 19, 2021 under application number EP21305344A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP4059904
- Application Number
- EP21305344A
- Filing Date
- Mar 19, 2021
- Status
- Granted And Under Opposition
- Aug 4, 2023
- Publication Date
- Sep 6, 2023
- External Links
- Slate, Register, Google Patents
Patent Summary
Patent Family
Patent Oppositions
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.
Patent Citations (10) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
Dossier Documents
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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