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Expired Canadian patentCanada

Lumber marking apparatus

CA 242516 A · Owner: The Weyerhaeuser Timber Co. · Inventors: Henry H. Payzant

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 August 26, 1924. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 1941.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 26, 1924
Term endedAugust 26, 1941
Patent numberCA 242516 A
Classification (IPC)B41F17/00 +2 more

Sources & verification

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