Expired Canadian patentCanada
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CA 109237 A · Owner: Mckeil, James B. · Inventors: Mckeil, James B.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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, and the Claude kit works from them.
Why it's free to use
- Granted December 17, 1907. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 1924.
- 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 19, 1907
GrantedDecember 17, 1907
Term endedDecember 17, 1924
Patent numberCA 109237 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.