Expired European patentEurope
Gas generant compositions containing salts of 5-nitrobarbituric acid, salts of nitroorotic acid, or 5-nitrouracil
EP 0400809 B1 · Applicant: MORTON INTERNATIONAL, INC.
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 April 26, 1990 and granted March 16, 1994. A European patent lasts at most 20 years from filing, so its term ended April 26, 2010.
- 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 October 26, 2015.
- 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.
FiledApril 26, 1990
PublishedDecember 5, 1990
GrantedMarch 16, 1994
Term endedApril 26, 2010
Application numberEP 90304498
Classification (CPC)C06B25/34 +1 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.