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Expired Canadian patentCanada

Bale rolling apparatus

CA 1071925 A · Owner: Chromalloy American Corporation · Inventors: Ulrich, James K.; Nishibe, Kazuteru; Kampman, Lester R.

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

Apparatus for rolling a swath of fodder into a bale in contact with the ground includes a frame a driven pickup, shaft with several transversely spaced sets of fodder pickup tines the tips of which sweep the ground to roll fodder in the swath forwardly to form a spiral bale bale compacting means, in the form of endless bands with raddles therebetween which has a lower working run the rear of which is immediately above the tine tips and the front of which is near the front of the frame, a pair of disks which are journalled on the sides of the frame on a common axis and which support the ends of the raddles so the working run arches upwardly between the rear and the front, spring means …

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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 February 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 19, 1980
Term endedFebruary 19, 1997
Patent numberCA 1071925 A
Classification (IPC)A01F15/00 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedFeb 19, 1980Term endedFeb 19, 1997

Sources & verification

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