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Expired Canadian patentCanada

Temperature regulating system, method and apparatus

CA 2096005 C · Owner: Evans, Rowland Frank · Inventors: Evans, Rowland Frank

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

A temperature regulating system (preferably a cooling system) for a cyclic processor comprising a mould having at least one internal passageway for receiving temperature regulating fluid preferably , coolant water. Continuous fluid flow will overcool the mould, and so the system normally is set to provide flow only for a part of the cycle, the proportion depending on mould temperature (or of fluid exhaust temperature) from a previous cycle preferably the immediately preceding cycle and with an averaged temperature over the cycle. Also disclosed is a processor fitted with the system, and a method of controlling the temperature of a fluid cooled processor.

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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

  • Filed November 14, 1991 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1991
GrantedOctober 5, 1999
Term endedNovember 14, 2011
Patent numberCA 2096005 C
Classification (IPC)G05D23/00 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 14, 1991Patent grantedOct 5, 1999Term endedNov 14, 2011

Sources & verification

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