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Expired Canadian patentCanada

Cover for fuses

CA 191375 A · Owner: Hathaway, Joseph Dean · Inventors: Hathaway, Joseph Dean

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.

Why it's free to use

  • Granted July 8, 1919. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 1936.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 10, 1917
GrantedJuly 8, 1919
Term endedJuly 8, 1936
Patent numberCA 191375 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

1918192019221924192619281930193219341936Application filedMay 10, 1917Patent grantedJuly 8, 1919Term endedJuly 8, 1936

Sources & verification

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