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Expired Canadian patentCanada

Boiler for liquid and or gaseous fuels

CA 1079590 A · Owner: Fer Fabbrica Europea Riscaldamento S.P.A. · Inventors: Trestin, Alessandro

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

An improved boiler for liquid and/or gaseous fuels comprising a combustion chamber and a heat exchanger wherein, said heat exchanger comprises at least one section provided with a finned conduit of a serpentine pattern the axis of which lies in a plane substantially at right angles to the path of the combustion products or fumes and associated fins.

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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, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 1997.
  • 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—
GrantedJune 17, 1980
Term endedJune 17, 1997
Patent numberCA 1079590 A
Classification (IPC)F22B23/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 17, 1980Term endedJune 17, 1997

Sources & verification

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