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Expired Canadian patentCanada

Method for manufacturing crisp rice

CA 1268989 C · Owner: Raniwala, Subodh K. · Inventors: Raniwala, Subodh K.; Kirkwood, James R.; Holay, Sanjay H.

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

A method for making a crisp rice product comprising the steps of (a) extrusion-cooking a moist mix of ingredients the ingredients comprising at least about 50% uncooked rice flour on a dry weight basis, in a screw-type extruder the, screw type extruder comprising an elongated barrel havong a feed end and a discharge end and a passageway therebetween and a single elongated screw snugly and rotatably residing within the passageway, the screw having a non-adhesive anti-, stick coating; (b) expressing the cooked mix from the extruder through a die under expanding conditions; (c) cutting the expressed mix into discrete pieces; (d) drying the cut pieces and (e) toasting the dried pieces.

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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 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 25, 1985
GrantedMay 15, 1990
Term endedMay 15, 2007
Patent numberCA 1268989 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedOct 25, 1985Patent grantedMay 15, 1990Term endedMay 15, 2007

Sources & verification

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