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Expired Canadian patentCanada

Ball cock construction for controlling the level of liquids such as water in tanks

CA 1065733 A · Owner: Schoepe, Adolf · Inventors: Schoepe, Adolf

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

Abstract of the Disclosure:, Telescoped inlet and outlet tubes having a valve between upper extremities thereof are each formed with end telescoped, upper and lower parts the tube, upper parts being assembled movable together and the tube lower parts being assembled movable together for simultaneously increasing and decreasing the respective tube end telescoping to selectively change the overall height of the ball cock. Positive securement in a height adjusted position against straight vertical relative movement is obtained by positive radial interengagement between the outlet tube parts with either selective relative rotation or selective release of the interengagement with re-engagement …

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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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
  • 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—
GrantedNovember 6, 1979
Term endedNovember 6, 1996
Patent numberCA 1065733 A
Classification (IPC)F16K31/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 6, 1979Term endedNov 6, 1996

Sources & verification

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