Expired European patentEurope
Manufacture of cadmium mercury telluride
EP 0135344 B1 · Applicant: Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland
Overview
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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, and the Claude kit works from them.
Why it's free to use
- Filed August 8, 1984 and granted October 21, 1987. A European patent lasts at most 20 years from filing, so its term ended August 8, 2004.
- 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 8, 2010.
- 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 8, 1984
PublishedMarch 27, 1985
GrantedOctober 21, 1987
Term endedAugust 8, 2004
Application numberEP 84305396
Classification (CPC)H10P14/3232 +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.