Underwater viewing vessel
CA 2287320 A1 · Owner: Hbs Herf R & D Pty Ltd · Inventors: Richardson, Donald George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monohull watercraft (10) having a floating portion (11) and a selectively deployable viewing pod (14) positioned within the floating portion (11) and movable through an opening (15) in the hull (11) of the floating portion to a first deployed position at least part way outside the hull (11) and second position wherein the viewing pod (14) is within the hull (11) of the floating portion. The opening (15) is closed in a watertight fashion when the pod (14) is in the second position and the pod (14) is constructed to allow for underwater observation and is arranged to accommodate passengers.
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 February 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2020.
- 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.