Patent Yard Sign in
Expired Canadian patentCanada

Universal safety coupler

CA 2641111 C · Owner: Strah, Larry E. · Inventors: Noble, Stuart O.; Strah, Larry E.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A coupling system for selectively connecting an associated fluid inlet with an associated fluid outlet includes an essentially hollow plug having a shape corresponding to one of a plurality of plug types and that is in fluid communication with the associated fluid outlet. A coupler is in fluid communication with the associated fluid inlet. The coupler includes a receiving region adapted for selective connection with a plug having a shape corresponding to one of the plurality of plug types. The coupler also has a lock that selectively locks the plug into the receiving region. The coupler additionally has a valve that is movable between an open position defining an operative connection …

Read the whole patent

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

  • Filed March 22, 2002 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 22, 2002
GrantedOctober 2, 2012
Term endedMarch 22, 2022
Patent numberCA 2641111 C
Classification (IPC)F16L37/23 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 22, 2002Patent grantedOct 2, 2012Term endedMarch 22, 2022

Sources & verification

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