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Expired Canadian patentCanada

Coupler arrangement

CA 1320985 C · Owner: Chardon Rubber Company · Inventors: Guy, Robert R.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An improved connecting arrangement (10) by which to secure one end of a drain conduit (12) to the stub conduit (13) of a drain port (14). A unique coupler (11) is interposed between one end of the drain conduit (12) and the port (14). The coupler (11) has an annular sleeve portion (20) and an annular fittingportion (21) that are joined by an generally annular transitional portion (24) which is interposed between the sleeve and fitting portions (20 and 21 respectively). The hollow interior (22) of the sleeve portion is provided with threads (25), and an annular sealing recess (26) which opens toward the interior, of the sleeve portion (20) is presented from the interior of the transitional …

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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 August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 13, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320985 C
Classification (IPC)F16L15/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 13, 1989Patent grantedAug 3, 1993Term endedAug 3, 2010

Sources & verification

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