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Expired Canadian patentCanada

Hitch assembly for a tandem disc implement

CA 1237012 A · Owner: Luscombe, Terry · Inventors: Luscombe, Terry

CIPO record

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

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Abstract From the Canadian patent

A tandem disc implement is provided with a hitch assembly for interconnecting the implement in articulated, trailing relation with respect to a tractor. The hitch assembly includes a draw bar which is pivotally connected to the tractor and is shiftably connected to the hitch frame of the hitch assembly. In one embodiment, the draw bar is pivotally connected to the hitch frame and is shifted between in-line and angulated relation with respect to the implement. In another embodiment, the draw bar is translated laterally from an in-line position to a laterally offset position. Shifting of the draw bar permits the implement to be towed in trailing tandem relation or alter-, natively, in offset …

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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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
  • 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 18, 1985
GrantedMay 24, 1988
Term endedMay 24, 2005
Patent numberCA 1237012 A
Classification (IPC)A01B69/00 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedMarch 18, 1985Patent grantedMay 24, 1988Term endedMay 24, 2005

Sources & verification

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