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Expired Canadian patentCanada

Machine for casting concrete members

CA 1205986 A · Owner: Fabcon, Inc. · Inventors: Nash, Richard C.; Koehn, Richard R.; Hanson, David W.

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

Abstract A machine for casting concrete panels. The machine disclosed casts hollow core concrete panels in a single casting operation utilizing a slipform technique to fill cores with core material which can be dumped from the core after curing of the concrete has been accomplished. Vibration of the slipform during casting facilitates free flow of concrete around the slipform and core material extruded from slipforms. The slipform has a closed front portion which is tapered to a reduced cross section. The machine utilizes a casting pallet employing improved side form cleaning apparatus. The machine also includes improved finishing screeds for applying decorative threedimensional finishes on …

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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 17, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 14, 1983
GrantedJune 17, 1986
Term endedJune 17, 2003
Patent numberCA 1205986 A
Classification (IPC)B28B1/14

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 14, 1983Patent grantedJune 17, 1986Term endedJune 17, 2003

Sources & verification

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