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Expired Canadian patentCanada

Elastic dog leash and coupler

CA 2563436 C · Owner: Young, W. Michael Iii · Inventors: Young, W. Michael Iii

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 elastic dog leash and coupler utilizes brightly colored florescent latex tubing for a major portion of the leash and coupler. The tubing is mounted between rings. A monofilament nylon line is mounted within the tubing and connected to the rings. The monofilament line has a length significantly greater than the unstretched length of the tubing and limits the degree to , which the tubing may be stretched. With respect to the leash a nonstretchable , webbing handle is attached at one end and a stop section of the leash is attached at the other end. The coupler is comprised of a plurality of sections of tubing mounted to a ring, which may be attached to the end of the leash. The other …

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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 March 25, 2005 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 25, 2005
GrantedAugust 13, 2013
Term endedMarch 25, 2025
Patent numberCA 2563436 C
Classification (IPC)A01K27/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 25, 2005Patent grantedAug 13, 2013Term endedMarch 25, 2025

Sources & verification

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