Patent Yard Sign in
Expired Canadian patentCanada

Machine gun

CA 204007 A · Owner: Harry Morehouse Leonard · Inventors: Harry Morehouse Leonard; Theodore Harding Lewis

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 September 14, 1920. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 1937.
  • 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—
GrantedSeptember 14, 1920
Term endedSeptember 14, 1937
Patent numberCA 204007 A
Classification (IPC)F41A

Timeline

Timeline From CIPO dates

192119231925192719291931193319351937Patent grantedSep 14, 1920Term endedSep 14, 1937

Sources & verification

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