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Expired Canadian patentCanada

Manger

CA 187828 A · Owner: Brown, John · Inventors: Brown, John

CIPO record

Overview

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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.

Google PatentsCIPO record

Why it's free to use

  • Granted December 10, 1918. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 1935.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1918
GrantedDecember 10, 1918
Term endedDecember 10, 1935
Patent numberCA 187828 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191919211923192519271929193119331935Application filedJune 5, 1918Patent grantedDec 10, 1918Term endedDec 10, 1935

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.com

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