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CA 62091 A · Owner: Martindale, John H. · Inventors: Martindale, John H.

CIPO record

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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.

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Why it's free to use

  • Granted December 17, 1898. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 1915.
  • 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 28, 1898
GrantedDecember 17, 1898
Term endedDecember 17, 1915
Patent numberCA 62091 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189919011903190519071909191119131915Application filedJune 28, 1898Patent grantedDec 17, 1898Term endedDec 17, 1915

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.