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Expired European patentEurope

Reprographic machines

EP 0253672 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 July 17, 1987 and granted February 20, 1991. A European patent lasts at most 20 years from filing, so its term ended July 17, 2007.
  • 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 17, 2013.
  • 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 17, 1987
PublishedJanuary 20, 1988
GrantedFebruary 20, 1991
Term endedJuly 17, 2007
Application numberEP 87306338
Classification (CPC)G03G15/107 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJuly 17, 1987PublishedJan 20, 1988Patent grantedFeb 20, 1991Term endedJuly 17, 2007

Sources & verification