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Expired Canadian patentCanada

Pyrotechnical smoke producing composition and application thereof

CA 1137318 A · Owner: Etat Francais Represente Par Le Delegue General Pour L'Armement · Inventors: Sedat, Georges A.

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 December 14, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 20, 1978
GrantedDecember 14, 1982
Term endedDecember 14, 1999
Patent numberCA 1137318 A
Classification (IPC)C06D3/00

Timeline

Timeline From CIPO dates

1979198219851988199119941997Application filedSep 20, 1978Patent grantedDec 14, 1982Term endedDec 14, 1999

Sources & verification

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