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Expired European patentEurope

Snow shed and avalanche-breaking structure made of at least two snow sheds

EP 0346326 B1 · Applicant: WOLFSEGG-TRAUNTHALER KOHLENWERKS-AKTIENGESELLSCHAFT

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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.

Why it's free to use

  • Filed November 26, 1987 and granted November 21, 1991. A European patent lasts at most 20 years from filing, so its term ended November 26, 2007.
  • 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 26, 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.
FiledNovember 26, 1987
PublishedDecember 20, 1989
GrantedNovember 21, 1991
Term endedNovember 26, 2007
Application numberEP 87907721
Classification (CPC)E01F7/04

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedNov 26, 1987PublishedDec 20, 1989Patent grantedNov 21, 1991Term endedNov 26, 2007

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