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Expired Canadian patentCanada

Returned bowling ball lifting apparatus

CA 1206988 A · Owner: Patentverwertungs- Und Finanzierungsgesellschaft Serania Ag · Inventors: Schmid, August

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

In bowling establishments, the bowling balls being returned on a ball return race must be lifted to a higher level in the vicinity of the player's position. This is effected by means of a belt drive, which is seated on a pivotable ball lift mechanism (6). If a ball (3) is not engaged by the belt (9), a feeler causes the arm (12) of the pivotable mechanism (6) to be lowered as a result of, which the ball is engaged by the belt (9) and is transported obliquely upward along the return race (2). As a result of this upward movement of the ball (3), the pivotable ball lift mechanism (6) is pivoted in the direction of the arrow A and the latch arm (22) again locks into place behind the latch (32), …

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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 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 14, 1983
GrantedJuly 2, 1986
Term endedJuly 2, 2003
Patent numberCA 1206988 A
Classification (IPC)A63D5/02

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 14, 1983Patent grantedJuly 2, 1986Term endedJuly 2, 2003

Sources & verification

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