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Expired Canadian patentCanada

Liquid level control

CA 725326 A · Owner: Robertshaw-Fulton Controls Company · Inventors: Louis M. Puster

CIPO record

Overview

Drawings and full text

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

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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 January 4, 1966. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 4, 1983.
  • 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—
GrantedJanuary 4, 1966
Term endedJanuary 4, 1983
Patent numberCA 725326 A
Classification (IPC)G01F23/56 +1 more

Timeline

Timeline From CIPO dates

196719691971197319751977197919811983Patent grantedJan 4, 1966Term endedJan 4, 1983

Sources & verification

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