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Expired Canadian patentCanada

Firearm stock connector

CA 2556540 C · Owner: Murphy, Randall S. · Inventors: Murphy, Randall S.; Schoppman, Edward D.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

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

A stock connector (5) allows for secure attachment of various stocks (120) to firearm receivers (110). The stocks (120) can be changed out easily and quickly in the field, without the use of specialized tools.

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 25, 2005 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 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.
FiledFebruary 25, 2005
GrantedSeptember 4, 2012
Term endedFebruary 25, 2025
Patent numberCA 2556540 C
Classification (IPC)F41C23/20

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 25, 2005Patent grantedSep 4, 2012Term endedFeb 25, 2025

Sources & verification

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