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Expired Canadian patentCanada

Auger apparatus

CA 1284626 C · Owner: Reid, Rod B. · Inventors: Reid, Rod B.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Auger apparatus includes a drive portion a connector, portion and a flight portion. The drive portion includes an elongated rigid shaft member including a longitudinal axis disposed along the path of material being advanced by the auger apparatus. The connector portion includes continuous stub section affixed to and extending outwardly from the periphery of the shaft member the stub section, being spirally disposed around the shaft member along the length thereof. The stub section includes a surface extending outwardly from the shaft member and substantially perpendicular thereto. The flight portion includes a plurality of radially cut elongated disc members each of the disc, members having …

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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 June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 23, 1987
GrantedJune 4, 1991
Term endedJune 4, 2008
Patent numberCA 1284626 C
Classification (IPC)B65G33/30

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedFeb 23, 1987Patent grantedJune 4, 1991Term endedJune 4, 2008

Sources & verification

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