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Expired European patentEurope

Saw teeth and metal cutting saw, in particular a circular saw, supplied with such teeth

EP 0286797 B1 · Applicant: Gustav Wagner Maschinenfabrik GmbH & Co. KG,i.K.

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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 12, 1988 and granted December 18, 1991. A European patent lasts at most 20 years from filing, so its term ended February 12, 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 12, 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 12, 1988
PublishedOctober 19, 1988
GrantedDecember 18, 1991
Term endedFebruary 12, 2008
Application numberEP 88102109
Classification (CPC)B23D61/04 +1 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedFeb 12, 1988PublishedOct 19, 1988Patent grantedDec 18, 1991Term endedFeb 12, 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

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