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Expired European patentEurope

Mold die for manufacturing optical module and manufacturing method using the same

EP 0496331 B1 · Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

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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 January 20, 1992 and granted December 11, 1996. A European patent lasts at most 20 years from filing, so its term ended January 20, 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 July 20, 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.
FiledJanuary 20, 1992
PublishedJuly 29, 1992
GrantedDecember 11, 1996
Term endedJanuary 20, 2012
Application numberEP 92100871
Classification (CPC)B29C33/0044 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedJan 20, 1992PublishedJuly 29, 1992Patent grantedDec 11, 1996Term endedJan 20, 2012

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