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Expired Canadian patentCanada

Method and an apparatus for building up a ground store of pressed vegetable material

CA 1293220 C · Owner: Korsgaard, Ebbe · Inventors: Korsgaard, Ebbe

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

For building up a protected store of pressed vegetable material on the ground ordinary prepressed bales of the material are picked up by means of a tractor loader and are successively put through a sausage funnel element as carrying a store of a retractable plastic sheet hose whereby a long row of bales are stored sausagewise. The funnel element is moved stepwise forwardly by means of the tractor to consecutively provide the necessary space in the hose for the next bale to be introduced. The tractor loader may be provided with equipment for applying a treating fluid to the bales during the handling thereof, and the bales thus treated, are then stored in a practically sealed manner in 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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 2, 1983
GrantedDecember 17, 1991
Term endedDecember 17, 2008
Patent numberCA 1293220 C
Classification (IPC)A01F25/14 +1 more

Timeline

Timeline From CIPO dates

198419871990199319961999200220052008Application filedDec 2, 1983Patent grantedDec 17, 1991Term endedDec 17, 2008

Sources & verification

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