All surface trampoline
CA 2081799 A1 · Owner: Watertramps International Limited · Inventors: Boyd, Peter D.; Boyd, Diane J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow ring-like inflatable support floats on a body of water. An elastic trampoline mat of open mesh construction is supported over the space within the support by a resilient plastic suspension. The suspension includes two layers of materials which are spaced from one another at the upper part thereof with the outer edge of the mat connected therebetween. The suspension extends around the outer periphery of the support and spaced lower parts thereof are connected to one another by ropes so that the tension on the mat may be adjusted. A layer of resilient material may be disposed between the inner surface of the suspension and the outer surface of the support to distribute the load from …
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 October 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2014.
- 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.