Sport racket with string stabilization and friction coating
CA 2127324 C · Owner: Csabai, Julius S. · Inventors: Csabai, Julius S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided of stabilizing a sport racket strung with synthetic strings, such as nylon strings and, imparting thereto additional friction that enables to achieve improved ball control during play which comprises:, roughening the strings at least in the main hitting area of the racket; coating the roughened strings with a polymer capable of stabilizing the strings and providing the same with extra friction; and curing the polymer on the strings so as to produce an essentially permanent polymeric coating at least in the main hitting area of the racket. Also the improved racket treated in accordance with the above method is part of the present invention.
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 July 4, 1994 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2016.
- 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.