Expired European patentEurope
Apparatus for spatially encoding a laser beam, comprising a Stark cell modulator
EP 0007613 B1 · Applicant: Hughes Aircraft Company
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 July 24, 1979 and granted April 20, 1983. A European patent lasts at most 20 years from filing, so its term ended July 24, 1999.
- 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 January 24, 2005.
- 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.
FiledJuly 24, 1979
PublishedFebruary 6, 1980
GrantedApril 20, 1983
Term endedJuly 24, 1999
Application numberEP 79102613
Classification (CPC)G02F1/174 +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.