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Expired Canadian patentCanada

Firing mechanism for automatic grenade launcher

CA 894338 A · Owner: The Government Of The United States Of America As Represented By The Sec Retary Of The Army · Inventors: Marshall D. Prince

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.

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 February 29, 1972. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 1989.
  • 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—
GrantedFebruary 29, 1972
Term endedFebruary 28, 1989
Patent numberCA 894338 A
Classification (IPC)F41A7/10 +1 more

Timeline

Timeline From CIPO dates

197319751977197919811983198519871989Patent grantedFeb 29, 1972Term endedFeb 28, 1989

Sources & verification

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