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Expired European patentEurope

Projection-lens system

EP 0193232 B1 · Applicant: Philips Electronics N.V.

EPO PDF

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 February 17, 1986 and granted September 19, 1990. A European patent lasts at most 20 years from filing, so its term ended February 17, 2006.
  • 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 August 17, 2011.
  • 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.
FiledFebruary 17, 1986
PublishedSeptember 3, 1986
GrantedSeptember 19, 1990
Term endedFebruary 17, 2006
Application numberEP 86200218
Classification (CPC)G02B13/18 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedFeb 17, 1986PublishedSep 3, 1986Patent grantedSep 19, 1990Term endedFeb 17, 2006

Sources & verification