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Expired Canadian patentCanada

Retainer clip for expanding baton

CA 2061540 C · Owner: Weber, Jerome J. · Inventors: Parsons, Kevin L.; Weber, Jerome J.

CIPO record

Overview

Drawings and full text

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

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No Claude kit for weapons

Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.

Abstract From the Canadian patent

In an expandable baton having a barrel and a telescoping member carried in the barrel and movable between extended and retracted positions, a spring clip retainer includes tapered outer ends and rounded edges for engaging and retaining the telescoping member in the retracted position without snagging or gouging the telescoping member as it is retracted.

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.

Why it's free to use

  • Filed February 19, 1992 and granted April 12, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 19, 1992
GrantedApril 12, 1994
Term endedFebruary 19, 2012
Patent numberCA 2061540 C
Classification (IPC)F41B15/02

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedFeb 19, 1992Patent grantedApril 12, 1994Term endedFeb 19, 2012

Sources & verification

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