Self-propelled manned submersible vehicles for under-sea excursions
CA 1319297 C · Owner: Onofri, Jean-Michel · Inventors: Onofri, Jean-Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-propelled manned submersible vehicle of the type comprising a pressure-resistant capsule (1) serving as a cabin ballast tanks ( 3, 8), releasable ballast (7) propulsion units, (4) having propellars driven by electric motors and storage, batteries (42), the vehicle being characterized in that said pressure-resistant capsule comprises a peripheral window constituted by a vertical cylindrical sleeve (19) which is entirely transparent, said sleeve being of sufficient diameter to house a plurality of people sitting side-by-side said, sleeve being extended downwardly by a hemispherical bottom (14) and upwardly by a spherical cap (16) which is extended by a cylindrical conning tower (21) …
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
- Granted June 22, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 22, 2010.
- 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.