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Expired European patentEurope

Raster optical scanner with wobble correction lens

EP 0550237 B1 · Applicant: XEROX CORPORATION

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 December 21, 1992 and granted August 28, 1996. A European patent lasts at most 20 years from filing, so its term ended December 21, 2012.
  • 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 June 21, 2018.
  • 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.
FiledDecember 21, 1992
PublishedJuly 7, 1993
GrantedAugust 28, 1996
Term endedDecember 21, 2012
Application numberEP 92311678
Classification (CPC)G02B27/0031

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedDec 21, 1992PublishedJuly 7, 1993Patent grantedAug 28, 1996Term endedDec 21, 2012

Sources & verification