Expired European patentEurope
Laser object-designation system
EP 0033679 B1 · Applicant: THOMSON-CSF
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 January 20, 1981 and granted July 13, 1983. A European patent lasts at most 20 years from filing, so its term ended January 20, 2001.
- 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 July 20, 2006.
- 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.
FiledJanuary 20, 1981
PublishedAugust 12, 1981
GrantedJuly 13, 1983
Term endedJanuary 20, 2001
Application numberEP 81400070
Classification (CPC)F41G3/326 +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.