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Expired Canadian patentCanada

Roller mill grain preheating

CA 1323348 C · Owner: California Pellet Mill Company · Inventors: Pierik, Henry A.

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

Docket No. 0382-CL-NO, ABSTRACT, An energy efficient steam rolled grain mill includes a preheater chamber, a steam chest, a roller mill and a cooler and dryer chamber. The cooler and dryer chamber is in direct heat exchange relationship with the preheater chamber. -9-

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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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
  • 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 8, 1988
GrantedOctober 19, 1993
Term endedOctober 19, 2010
Patent numberCA 1323348 C
Classification (IPC)B02C4/00 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 8, 1988Patent grantedOct 19, 1993Term endedOct 19, 2010

Sources & verification

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