Sub aqua breathing system
CA 2447197 A1 · Owner: Tokatlian, Sarkis · Inventors: Tokatlian, Sarkis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sub-aqua breathing system which enables a person operating underwater to breathe air from a compressed air tank (2) supported on the water surface. The system includes a housing (1) containing both a buoyant material (3) and a toroidal compressed air tank (2) connected to an air line (7) feeding a conventional mouthpiece regulator. The air line (7) may be coiled and stored within, or on, the housing (1). Preferably the housing (1) is of discus-like shape with the buoyant material (3) in the form of floats normally nested within the housing (1), but deployable radially outward to increase stability when the assembly is floating on the water surface.
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 May 15, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2024.
- 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.