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EP 0321517 B1 · Applicant: WOHLWEND, Arnold

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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 June 20, 1988 and granted August 26, 1992. A European patent lasts at most 20 years from filing, so its term ended June 20, 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 December 20, 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.
FiledJune 20, 1988
PublishedJune 28, 1989
GrantedAugust 26, 1992
Term endedJune 20, 2008
Application numberEP 88905171
Classification (CPC)A61C9/002

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedJune 20, 1988PublishedJune 28, 1989Patent grantedAug 26, 1992Term endedJune 20, 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.