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Expired Canadian patentCanada

Racket having a longitudinally slidable grip shell

CA 1231354 A · Owner: Puma-Sportschuhfabriken Rudolf Dassler Kg. · Inventors: Adam, Gunter

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 racket, especially a tennis racket is, constructed to be of a normal size but has a, lengthwise adjustable grip to offer the player the opportunity to adapt the length of the racket to his skills and to the development of his hitting arm. For this purpose, a hand-grip sleeve is arranged on a shaft of the racket frame in a longitudinally movable manner. The position of the grip sleeve can be adjusted via an adjusting screw. On at least one side of the shaft an, imprinted guide is provided that spans at least the range of adjusting movement of the top edge of the grip sleeve.

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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 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 1984
GrantedJanuary 12, 1988
Term endedJanuary 12, 2005
Patent numberCA 1231354 A
Classification (IPC)A63B60/14 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJune 28, 1984Patent grantedJan 12, 1988Term endedJan 12, 2005

Sources & verification

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