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Expired Canadian patentCanada

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CA 82425 A · Owner: Reeves, Edwin Arthur · Inventors: Reeves, Edwin Arthur

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.

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Why it's free to use

  • Granted August 11, 1903. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1920.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1903
GrantedAugust 11, 1903
Term endedAugust 11, 1920
Patent numberCA 82425 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190419061908191019121914191619181920Application filedJune 8, 1903Patent grantedAug 11, 1903Term endedAug 11, 1920

Sources & verification

Official CIPO records

Canadian Patents DatabaseClaims, description, documents and status.CIPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.com

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