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Expired Canadian patentCanada

Closures

CA 2018902 C · Owner: Quortech Solutions, Inc. · Inventors: Soubliere, Marc P.

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

CLOSURES, Abstract of the Disclosure, A closure particularly, a telephone closure base with two closure members and a movable shear locking member. In a closed condition of the closure aligned aper-, tures of the two closure members may receive the locking member to hold the assembly closed. A part of one of the closure members having the aperture is flexible and tensile and has a flexure position such that, when an opening force is applied to the assembly with the locking member extending through the apertures, the flexible part is flexed under tension and is urged against an opposing surface of the other closure member formed with the corresponding aperture. This flexing action places the …

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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

  • Filed June 13, 1990 and granted November 9, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2012.
  • 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 13, 1990
GrantedNovember 9, 1993
Term endedJune 13, 2010
Patent numberCA 2018902 C
Classification (IPC)H04M1/02 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 13, 1990Patent grantedNov 9, 1993Term endedJune 13, 2010

Sources & verification

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