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Expired Canadian patentCanada

Ball return control apparatus

CA 1305504 C · Owner: Valley Recreation Products Inc. · Inventors: Brejcha, Robert J.; Kunnecke, Ullrich Kurt Anton; Shelton, Richard Bruce

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 pool table having a playing surface with which ball accommodating pockets are associated. Pocketed objected balls are conveyed by a runway system via a trap toward a compartment at one end of the table that is accessible to a player. The trap has a gate operable to prevent passage of the object balls into the compartment. The operation of the gate is controlled by a latch which is movable between a first position in which it latches the gate in ball-blocking position and a second position in which it enables balls to pass the gate. The position of the latch is controlled by a latch driving motor or solenoid.

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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 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.
FiledAugust 10, 1988
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305504 C
Classification (IPC)A63D15/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 10, 1988Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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