Racquet string aligner
CA 2106623 C · Owner: Chan, Stephen · Inventors: Chan, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention pertains to a novel aligner which can be used to space evenly the strings of a sports racquet. More particularly, this invention pertains to a novel racquet string aligner which can accommodate different racquet string spacings and can be used as the cap for a typical container for tennis balls. A racquet string aligner for aligning the strings of a racquet comprising: (a) a base member; (b) a tapered central projection on the base member having a topography that tapers away from the base member; (c) at least one tapered first projection adjacent the central projection the base of which is located a first radius from the centre-point of the central projection, and at least a …
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 September 21, 1993 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 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.