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Expired Canadian patentCanada

Electric ignition device

CA 330161 A · Owner: The Atlas Powder Company · Inventors: Guy F. Rolland

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 February 14, 1933. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 1950.
  • 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 14, 1933
Term endedFebruary 14, 1950
Patent numberCA 330161 A
Classification (IPC)F42C11/00

Timeline

Timeline From CIPO dates

193419361938194019421944194619481950Patent grantedFeb 14, 1933Term endedFeb 14, 1950

Sources & verification

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