Life vest for kayakers
CA 2212780 A1 · Owner: Wright, Kenneth F. · Inventors: Wright, Kenneth F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flotation supplement to a personal flotation device. The flotation supplement has an inflatable buoyancy chamber mountable upon a buoyant life vest. An air storage container is coupled to the inflatable buoyancy chamber to inflate the buoyancy chamber. The buoyancy chamber is laterally offset upon the life vest to provide asymmetric supplemental buoyancy. When not in use the inflatable, buoyancy chamber is stored in its deflated position and releasably restrained to the life vest.
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 August 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2019.
- 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.