Expired European patentEurope
Photopyrotechnic priming device comprising a microlens crimped with a material having shape recollection power and a pyrotechnic line using such device
EP 0397572 B1 · Applicant: AEROSPATIALE Société Nationale Industrielle
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 May 10, 1990 and granted September 22, 1993. A European patent lasts at most 20 years from filing, so its term ended May 10, 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 November 10, 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.
FiledMay 10, 1990
PublishedNovember 14, 1990
GrantedSeptember 22, 1993
Term endedMay 10, 2010
Application numberEP 90401244
Classification (CPC)G02B7/02 +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.