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Expired Canadian patentCanada

Support and elevating frame for an auger

CA 1264458 C · Owner: Head, Graham Stuart · Inventors: Head, Graham Stuart

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

A support and elevating means for an auger tube which is carried by a chassis and comprises lifting means between the chassis and the auger tube for elevation and lowering of the discharge end of the auger tube between lower and elevated positions, there being position adjustment means between the chassis and auger tube so arranged that upon lowering, the auger tube moves downward and rearwardly so that the centre of gravity remains vertically above the chassis and does not move forwardly thereof, thereby always ensuring that the auger tube is in a stable relationship with respect to the chassis and is unlikely to topple either when elevated and in use or when retracted over the chassis.

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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 January 16, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 1986
GrantedJanuary 16, 1990
Term endedJanuary 16, 2007
Patent numberCA 1264458 C
Classification (IPC)B65G41/00

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedMarch 3, 1986Patent grantedJan 16, 1990Term endedJan 16, 2007

Sources & verification

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