Expired European patentEurope
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EP 0168592 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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, and the Claude kit works from them.
Why it's free to use
- Filed May 20, 1985 and granted August 3, 1988. A European patent lasts at most 20 years from filing, so its term ended May 20, 2005.
- 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 20, 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.
FiledMay 20, 1985
PublishedJanuary 22, 1986
GrantedAugust 3, 1988
Term endedMay 20, 2005
Application numberEP 85106160
Classification (CPC)H04N1/0057 +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.