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Expired Canadian patentCanada

Water-borne flares and the like

CA 476352 A · Owner: Charles Schermuly · Inventors: Charles Schermuly; Conrad David Schermuly; Alfred James Schermuly

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 August 28, 1951. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1968.
  • 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—
GrantedAugust 28, 1951
Term endedAugust 28, 1968
Patent numberCA 476352 A
Classification (IPC)F42B15/00 +2 more

Timeline

Timeline From CIPO dates

195219541956195819601962196419661968Patent grantedAug 28, 1951Term endedAug 28, 1968

Sources & verification

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