Waterproof game ball
CA 2243767 C · Owner: Swimways Corp. · Inventors: Cooper, John Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A waterproof game ball comprises elastically stretchable panels connected and sealed together along marginal edge portions thereof to define a shell and a flexible, inflatable bag disposed within the shell for receiving air to inflate the bag. Each of the elastically stretchable panels has a main body formed from a single piece of non-porous water-impervious material.
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 22, 1998 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2020.
- 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.