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Expired Canadian patentCanada

Adjustable air and water entrainment hydrotherapy jet assembly

CA 1304641 C · Owner: Henkin, Melvyn L. · Inventors: Henkin, Melvyn L.; Laby, Jordan M.

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

A hydrotherapy jet assembly capable of operating in either an air entrainment mode and/or a tub water entrainment mode. The assembly incorporates a valve means including a rotatable control member which allows a user to selectively vary the amount of supplied water jet and/or air available for entrainment and/or tub water available for entrainment.

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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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 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.
FiledMarch 20, 1989
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304641 C
Classification (IPC)A61H33/02 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMarch 20, 1989Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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