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Expired European patentEurope

Printing screen and method and apparatus for its manufacture

EP 0492351 B1 · Applicant: Gerber Scientific Products, Inc.

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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 16, 1991 and granted September 21, 1994. A European patent lasts at most 20 years from filing, so its term ended December 16, 2011.
  • 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 16, 2017.
  • 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 16, 1991
PublishedJuly 1, 1992
GrantedSeptember 21, 1994
Term endedDecember 16, 2011
Application numberEP 91121558
Classification (CPC)B41C1/147

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedDec 16, 1991PublishedJuly 1, 1992Patent grantedSep 21, 1994Term endedDec 16, 2011

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