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Expired Canadian patentCanada

Crop conditioner roll

CA 1085625 A · Owner: Deere & Company · Inventors: Sawyer, Bobby G.

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

Abstract of the Disclosure An agricultural harvesting machine, such as a mowerconditioner or the like, includes a pair of meshing crop conditioner rolls between which harvested crop material is passed to accelerate the drying of the crop in the field. The rolls are of identical construction, each roll being made of a tubular metal core with a molded body of elastomeric material molded onto the core. Each roll has a plurality of generally radially extending lugs that are disposed in axially extending rows with the lugs, on one roll meshing with and extending into the space between the lugs on the opposite roll, each lug having an arcuate outer surface coaxial with the roll axis so that the …

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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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 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.
FiledMarch 29, 1978
GrantedSeptember 16, 1980
Term endedSeptember 16, 1997
Patent numberCA 1085625 A
Classification (IPC)A01D82/00

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMarch 29, 1978Patent grantedSep 16, 1980Term endedSep 16, 1997

Sources & verification

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