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Expired Canadian patentCanada

Lubricator

CA 129802 A · Owner: Boland, Christopher G. · Inventors: Melvin, Mark G.; Boland, Christopher G.

CIPO record

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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 December 13, 1910. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 13, 1927.
  • 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 18, 1910
GrantedDecember 13, 1910
Term endedDecember 13, 1927
Patent numberCA 129802 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

191119131915191719191921192319251927Application filedOct 18, 1910Patent grantedDec 13, 1910Term endedDec 13, 1927

Sources & verification

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