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Expired Canadian patentCanada

Dispositif pour la generation de signaux codes constitues par des ondes de choc

CA 979515 A · Owner: Etat Francais Represente Par Le Ministre D'Etat Charge De La Defense Nat Ionale, Delegation Ministerielle Pour L'Armement Direction Technique Des Constructions Navales · Inventors: Marchandise, Victor F.; Delgendre, Jacques C.; Guigot, Vincent L.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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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 9, 1975. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 1992.
  • 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—
GrantedDecember 9, 1975
Term endedDecember 9, 1992
Patent numberCA 979515 A
Classification (IPC)G10K15/04 +2 more

Timeline

Timeline From CIPO dates

197619781980198219841986198819901992Patent grantedDec 9, 1975Term endedDec 9, 1992

Sources & verification

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