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Expired Canadian patentCanada

Overflow level controller for a bathtub

CA 1320797 C · Owner: Holt, Peter K. · Inventors: Olorenshaw, George M.; Holt, Peter K.; Holt, Peter K.

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

A BATHTUB . ABSTRACT OF THE DISCLOSURE, An overflow level controller for a bathtub is provided with an adapter ring to facilitate connection with a conventional bathtub fixture base, and includes a housing with a removable covering. Rotation of the housing adjusts the overflow level of the bathtub.

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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 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 25, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320797 C
Classification (IPC)E03C1/24

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 25, 1989Patent grantedAug 3, 1993Term endedAug 3, 2010

Sources & verification

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