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Expired European patentEurope

Coupler connectable under pressure

EP 0001080 B1 · Applicant: DEUTSCHE SEMPERIT Gesellschaft m.b.H.

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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 August 28, 1978 and granted April 27, 1983. A European patent lasts at most 20 years from filing, so its term ended August 28, 1998.
  • 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 February 28, 2004.
  • 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.
FiledAugust 28, 1978
PublishedMarch 21, 1979
GrantedApril 27, 1983
Term endedAugust 28, 1998
Application numberEP 78100763
Classification (CPC)F16L37/32

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedAug 28, 1978PublishedMarch 21, 1979Patent grantedApril 27, 1983Term endedAug 28, 1998

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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