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Expired Canadian patentCanada

Apparatus for producing cast products and process therefor

CA 1319002 C · Owner: Fujishima, Toshiya · Inventors: Hayashi, Toshihiro; Kohno, Hiroshige; Fujishima, Toshiya

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention is directed to an apparatus for producing cast products, comprising: a filling unit in which a non-solid material is filled from a filling nozzle into an elastic mold having an open-bag shaped filling section; a solidifying unit in which the filled material is solidified inside the elastic mold; and a withdrawal unit in which a solidified product is withdrawn from inside the elastic mold, wherein the filling unit is sucked under a vacuum from the side of the elastic mold opposite to the filling nozzle and the elastic mold is thereby expanded before starting a filling operation. It is possible to produce cast products with no joint mark left since the elastic mold having 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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 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.
FiledAugust 30, 1988
GrantedJune 15, 1993
Term endedJune 15, 2010
Patent numberCA 1319002 C
Classification (IPC)B29C39/24 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedAug 30, 1988Patent grantedJune 15, 1993Term endedJune 15, 2010

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