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Expired Canadian patentCanada

Pressure gauge

CA 63000 A · Owner: Lawrence Burdick, Charles · Inventors: Lawrence Burdick, Charles

CIPO record

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 April 27, 1899. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 1916.
  • 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 5, 1898
GrantedApril 27, 1899
Term endedApril 27, 1916
Patent numberCA 63000 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189919011903190519071909191119131915Application filedOct 5, 1898Patent grantedApril 27, 1899Term endedApril 27, 1916

Sources & verification

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