Expired Canadian patentCanada
Solid non-detonating gas-generating charges comprising guanidine nitrate in admixture with a polyhydroxy compound
CA 486911 A · Owner: Imperial Chemical Industries Plc · Inventors: Alexander Cantlay Hutchison
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
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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 September 30, 1952. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 1969.
- 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—
GrantedSeptember 30, 1952
Term endedSeptember 30, 1969
Patent numberCA 486911 A
Classification (IPC)C06B25/00
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.