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Train Security System, Train Security Control Method, And On-Train Device - EP3988376
The patent EP3988376 was granted to Hitachi on Feb 19, 2025. The application was filed on Apr 13, 2020 under application number EP20825122A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP3988376
- Application Number
- EP20825122A
- Filing Date
- Apr 13, 2020
- Status
- Granted And Under Opposition
- Jan 17, 2025
- Publication Date
- Feb 19, 2025
- 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 (19) 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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