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Expired Canadian patentCanada

Apparatus for harvesting ginseng roots

CA 2011114 C · Owner: Gallenberg Equipment, Inc. · Inventors: Gallenberg, Anton

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

An automated ginseng root harvester having a feeder conveyor, an air flow for separating ginseng roots from various heavier and lighter objects, a pair of lateral separation conveyors, an inclined conveyor extending in the direction of the air flow and a plurality of further conveyors for inspection and collection of the ginseng roots. The implement of the present invention dramatically reduces the manual labor involved in ginseng root harvest and insures substantially complete collection of all roots in a single harvest operation.

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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

  • Filed February 28, 1990 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
  • 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 28, 1990
GrantedMay 16, 2000
Term endedFebruary 28, 2010
Patent numberCA 2011114 C
Classification (IPC)A01D17/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 28, 1990Patent grantedMay 16, 2000Term endedFeb 28, 2010

Sources & verification

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