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Expired Canadian patentCanada

Support systems for pipes and other loads

CA 1311233 C · Owner: Todd, George R. · Inventors: Todd, George R.

CIPO record

Overview

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

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Abstract From the Canadian patent

Systems for supporting pipes and other loads from elongated struts and channels. Clamps connectors, and other fittings for attaching the supported load to the channel fit into cooperating notches formed in flanges spaced inwardly from the side walls of the channel. This interfitting relationship provides a positive connection between the fitting and the channel keeping even heavy loads and loads subjected to vibration, hammering, or the like and supported from the channel slipping, even if the supporting channel is vertically oriented and the load is therefore the most susceptible to slippage.

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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 December 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 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.
FiledSeptember 28, 1989
GrantedDecember 8, 1992
Term endedDecember 8, 2009
Patent numberCA 1311233 C
Classification (IPC)F16L3/08 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 28, 1989Patent grantedDec 8, 1992Term endedDec 8, 2009

Sources & verification

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