Expired European patentEurope
Anhydrous tetrazole gas generant compositions and methods of preparation
EP 0712384 B1 · Applicant: THIOKOL CORPORATION
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 August 2, 1994 and granted January 8, 2003. A European patent lasts at most 20 years from filing, so its term ended August 2, 2014.
- 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 February 2, 2020.
- 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.
FiledAugust 2, 1994
PublishedMay 22, 1996
GrantedJanuary 8, 2003
Term endedAugust 2, 2014
Application numberEP 94924553
Classification (CPC)C06B43/00 +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.