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Expired Canadian patentCanada

Method and apparatus for cleaning a pipe system provided for the operation of baths

CA 1283260 C · Owner: Franninge, Thomas Kurt · Inventors: Franninge, Thomas Kurt

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

The present invention relates to a method of cleaning a pipe system (3) in baths, preferably bath tubs through, which pipe system water and/or air is led into the bathwater (6) of the bath (1) to produce water currents and/ /or water/air currents (4) and/or air bubbles (5) therein. For effective cleaning, the pipe system (3) is flushed with pure water (31) after a bath has been taken before impurities in said pipe system have/had time to dry. A suitable apparatus for carrying out said method comprises a sensor (49) which is adapted to sense when bathing in the bath (1) has been concluded and to deliver when the bathing has been concluded a signal to a time lag relay (34) which is adapted to …

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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 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 6, 1987
GrantedApril 23, 1991
Term endedApril 23, 2008
Patent numberCA 1283260 C
Classification (IPC)A47K3/10 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJuly 6, 1987Patent grantedApril 23, 1991Term endedApril 23, 2008

Sources & verification

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