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Expired Canadian patentCanada

Flue gas conduit connector

CA 1322017 C · Owner: Green, Lloyd C. · Inventors: Green, Lloyd C.

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

A flue gas conduit connector for joining together the ends of flue gas conduits by means of locking tabs on the outer surface of one flue gas conduit which may be bent over a locking ring or the other flue gas conduit the ends of, the flue gas conduits being provided with complimental taper joints and a sealing gasket to provide a leak-proof corrosion resistant inner flue passage uncorrupted by low alloy fasteners.

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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 September 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 7, 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.
FiledJune 15, 1989
GrantedSeptember 7, 1993
Term endedSeptember 7, 2010
Patent numberCA 1322017 C
Classification (IPC)F16L25/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 15, 1989Patent grantedSep 7, 1993Term endedSep 7, 2010

Sources & verification

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