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Expired Canadian patentCanada

Explosive compositions

CA 885923 A · Owner: Imperial Chemical Industries Of Australia And New Zealand Limited · Inventors: Gwyn Harries; Norman M. Jardine

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 November 16, 1971. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1988.
  • 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—
GrantedNovember 16, 1971
Term endedNovember 16, 1988
Patent numberCA 885923 A
Classification (IPC)C06B31/00 +2 more

Timeline

Timeline From CIPO dates

197219741976197819801982198419861988Patent grantedNov 16, 1971Term endedNov 16, 1988

Sources & verification

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