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Expired European patentEurope

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EP 0279348 B1 · Applicant: RAYOVAC 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.

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Why it's free to use

  • Filed February 10, 1988 and granted May 25, 1994. A European patent lasts at most 20 years from filing, so its term ended February 10, 2008.
  • 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 August 10, 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.
FiledFebruary 10, 1988
PublishedAugust 24, 1988
GrantedMay 25, 1994
Term endedFebruary 10, 2008
Application numberEP 88101966
Classification (CPC)H01M50/186 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedFeb 10, 1988PublishedAug 24, 1988Patent grantedMay 25, 1994Term endedFeb 10, 2008

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.