Expired Canadian patentCanada
Preparation of soluble colloids of the gelatine class
CA 57799 A · Owner: Mills, Edmund James · Inventors: Mills, Edmund James
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
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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, and the Claude kit works from them.
Why it's free to use
- Granted October 15, 1897. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 1914.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1896
GrantedOctober 15, 1897
Term endedOctober 15, 1914
Patent numberCA 57799 A
Classification (IPC)—
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.