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Expired Canadian patentCanada

Process for disconnecting and connecting at least three heating currents for different temperatures

CA 716786 A · Owner: Gesellschaft Fur Linde'S Eismaschinen Aktiengesellschaft · Inventors: Kurt Nesselmann

CIPO record

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

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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 August 31, 1965. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 31, 1982.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 31, 1965
Term endedAugust 31, 1982
Patent numberCA 716786 A
Classification (IPC)F25B21/00 +2 more

Timeline

Timeline From CIPO dates

196619681970197219741976197819801982Patent grantedAug 31, 1965Term endedAug 31, 1982

Sources & verification

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