Inflatable swimmer's safety belt
CA 2136767 A1 · Owner: Brown, Dennis · Inventors: Brown, Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A first belt of the invention -- substantially hollow and worn about the waist -- is able to be filled with a compressed gas from a cartridge coupled with it and actuable by a pin whose placement is controlled by a pulling open of a belt buckle or by a pulling on an included lanyard. A portion of this first belt is secured in overlapping relationship so as to unfold and expand outwardly under action of the compressed gas which fills it. A second belt of the invention -- of conventionalconstruction and also worn about the waist -- underlies the first belt and is tethered to it. The end result is to increase the length of the first belt when filled with the compressed gas, thereby forming 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 November 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 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.