Game ball with synthetic leather cover
CA 2135956 C · Owner: Jaszek, John · Inventors: Walker, Alan D.; Jaszek, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A softball has a high end synthetic leather stitched cover formed from a non-woven fiber mat impregnated with polyurethane. The softball which can be formed to meet association specifications has a cover to core weight ratio significantly less than 0.2 and typically in the range of 0.08 - 0.16 while meeting durability requirements. Because a greater weight concentration is in the core of the ball the ball has improved playability characteristics over conventional balls having synthetic leather covers.
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 November 16, 1994 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 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.