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Expired Canadian patentCanada

Green asparagus harvester

CA 1301464 C · Owner: Salkeld, William J. · Inventors: Salkeld, William J.

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

SPECIFICATION, TITLE: "GREEN ASPARAGUS HARVESTER" Abstract of the Disclosure, An asparagus spear selection and picking unit for a harvester of green asparagus has at least one pair of tynes which are mounted adjacent to, but spaced apart from, each other. The adjacent edges of the tynes are shaped to provide a tapered channel leading to the nip of a pair of soft conveyors mounted adjacent to each other and extending upwards at an acute angle relative to the horizontal. The height of the pair of tynes above ground level is adjustable. When a growing asparagus spear has a height sufficient for its tip to be guided into the nip of the soft conveyors by the tynes, its top is gripped by the soft …

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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 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 1988
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301464 C
Classification (IPC)A01D45/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 30, 1988Patent grantedMay 26, 1992Term endedMay 26, 2009

Sources & verification

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