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Expired European patentEurope

Remote fired RF getter for use in metal infrared detector Dewar

EP 0492181 B1 · Applicant: Santa Barbara Research Center

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Overview

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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.

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Why it's free to use

  • Filed November 30, 1991 and granted January 10, 1996. A European patent lasts at most 20 years from filing, so its term ended November 30, 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 May 30, 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.
FiledNovember 30, 1991
PublishedJuly 1, 1992
GrantedJanuary 10, 1996
Term endedNovember 30, 2011
Application numberEP 91120650
Classification (CPC)F25D19/006 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedNov 30, 1991PublishedJuly 1, 1992Patent grantedJan 10, 1996Term endedNov 30, 2011

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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