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Expired Canadian patentCanada

Windrow merger

CA 1285145 C · Owner: Gehl Company · Inventors: Burrough, Donald E.; Reilly, Paul O.

CIPO record

Overview

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

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Abstract From the Canadian patent

An apparatus for merging a pair of windrows into a single windrow for subsquent processing by a forage harvester, square baler or the like. The apparatus includes a main frame, a rotary pickup head for picking up the first windrow, a cross conveyor mounted on the main frame and disposed rearwardly of the pickup head for transporting the first windrow transversely between a windrow receiving end and a windrow discharge end, a hydraulic drive circuit including a cross conveyor drive motor and a pickup drive motor, a speed control mechanism for controlling the speed of the cross conveyor independently of the speed of the pickup head so that conveyor belt speed may be adjusted depending upon …

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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 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 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 2, 1989
GrantedJune 25, 1991
Term endedJune 25, 2008
Patent numberCA 1285145 C
Classification (IPC)A01D89/00 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedFeb 2, 1989Patent grantedJune 25, 1991Term endedJune 25, 2008

Sources & verification

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