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Expired Canadian patentCanada

Electric lamp

CA 63102 A · Owner: Darling, David Henry · Inventors: Darling, David Henry; Bugg, Owen Thomas

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 May 22, 1899. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 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.
FiledAugust 9, 1898
GrantedMay 22, 1899
Term endedMay 22, 1916
Patent numberCA 63102 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

189919011903190519071909191119131915Application filedAug 9, 1898Patent grantedMay 22, 1899Term endedMay 22, 1916

Sources & verification

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