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Expired Canadian patentCanada

Ejector for rotating breech automatic guns

CA 572302 A · Owner: Minister Of Supply In His Majesty'S Government Of The United Kingdom Of Great Britain And Northern Ireland · Inventors: James V. Shepherd

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.

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

  • Granted March 17, 1959. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1976.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 17, 1959
Term endedMarch 17, 1976
Patent numberCA 572302 A
Classification (IPC)F41A9/00 +1 more

Timeline

Timeline From CIPO dates

196019621964196619681970197219741976Patent grantedMarch 17, 1959Term endedMarch 17, 1976

Sources & verification

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