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Expired Canadian patentCanada

Grain auger device

CA 925041 A · Owner: Loch, Alphonse · Inventors: Loch, Alphonse; Loch, George N.

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 April 24, 1973. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 1990.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1970
GrantedApril 24, 1973
Term endedApril 24, 1990
Patent numberCA 925041 A
Classification (IPC)B65G15/60 +2 more

Timeline

Timeline From CIPO dates

1971197319751977197919811983198519871989Application filedDec 23, 1970Patent grantedApril 24, 1973Term endedApril 24, 1990

Sources & verification

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