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Expired Canadian patentCanada

Guy-wire mast attachment device and mast provided with at least one such device

CA 1302679 C · Owner: Laboratoire D'Etudes Et De Recherches Chimiques (Lerc) S.A. · Inventors: Guislain, Guy; Foissac, Yves

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Its claims, description and drawings are in the Canadian Patents Database.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1985
GrantedJune 9, 1992
Term endedJune 9, 2009
Patent numberCA 1302679 C
Classification (IPC)E02D5/74

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedMay 27, 1985Patent grantedJune 9, 1992Term endedJune 9, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.