Expired European patentEurope
Method for producing gas generating agent
EP 1279655 B1 · Applicant: Daicel Chemical Industries, Ltd.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Read the whole patent
Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents.
Why it's free to use
- Filed March 27, 2001 and granted October 10, 2018. A European patent lasts at most 20 years from filing, so its term ended March 27, 2021.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by September 27, 2026.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledMarch 27, 2001
PublishedJanuary 29, 2003
GrantedOctober 10, 2018
Term endedMarch 27, 2021
Application numberEP 01915836
Classification (CPC)C06B45/00 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.