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Expired Canadian patentCanada

Hot water supply for tubs

CA 1298599 C · Owner: Giordani, Attilio G. · Inventors: Giordani, Attilio G.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Tubs are supplied with hot water through a water circulation system including a pump, an elongate electric flowthrough heater, a water filter and piping connecting that pump, elongate flow-through heater and water filter in series in that water circulation system. The pump elongate, flow-through heater and piping are arranged in a horizontal plane so that water flow passages in that piping in the, elongate flow-through heater and in the pump are intersected by that horizontal plane extending along directions of water flow in the mentioned water flow passages. The pump may be provided with a water inlet and a water outlet both lying in the same horizontal plane as the elongate flowthrough …

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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 15, 1988
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298599 C
Classification (IPC)F24H1/16 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 15, 1988Patent grantedApril 7, 1992Term endedApril 7, 2009

Sources & verification

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