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Expired Canadian patentCanada

Grain shocking machine

CA 77409 A · Owner: Russell, William · Inventors: Russell, William

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.

Google PatentsCIPO record

Why it's free to use

  • Granted September 16, 1902. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1919.
  • 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 20, 1902
GrantedSeptember 16, 1902
Term endedSeptember 16, 1919
Patent numberCA 77409 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

190319051907190919111913191519171919Application filedAug 20, 1902Patent grantedSep 16, 1902Term endedSep 16, 1919

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.