Ball-game racket, particularly a tennis racket
CA 2088236 C · Owner: Franz Volkl Gmbh & Co. Ski Und Tennis Sportartikelfabrik Kg · Inventors: Klose, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention refers to an improved ball-game racket particular to a tennis racket, having a hollow outwardly closed, frame which forms a handle and with a frame part, a racket head. The racket has also a stringing formed of intersecting string lengths on the racket head. In order to improve the comfort of the player upon playing, a specific new string attachment is proposed providing for a mobility of the strings in the direction perpendicular to a stringing plane.
Read the whole patent
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
- Filed January 27, 1993 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.