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Expired Canadian patentCanada

Liquid propellant weapon system

CA 1333669 C · Owner: Bulman, Melvin John · Inventors: Bulman, Melvin John

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

This invention provides the provision of a liquid propellant gun system having a traveling charge which is ignited after both such charge and the projectile have been accelerated forwardly.

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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 1988
GrantedDecember 27, 1994
Term endedDecember 27, 2011
Patent numberCA 1333669 C
Classification (IPC)F41A1/04

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 15, 1988Patent grantedDec 27, 1994Term endedDec 27, 2011

Sources & verification

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