Spacer Expander And Oil Control Ring Including Same - EP3779244
The patent EP3779244 was granted to Kabushiki Kaisha Riken on Sep 25, 2024. The application was originally filed on Mar 29, 2019 under application number EP19781732A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP3779244
- Application Number
- EP19781732A
- Filing Date
- Mar 29, 2019
- Status
- Granted And Under Opposition
- Aug 22, 2024
- Grant Date
- Sep 25, 2024
- External Links
- Slate, Register, Google Patents
Patent Summary
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Patent Oppositions (2)
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 (23) New
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