Artic express
CA 2002463 A1 · Owner: Rosen, Arthur I. · Inventors: Rosen, Arthur I.; Rosen, Arthur I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Form 24, ABSTRACT, In a vehicle used to patrol the polar regions must be built the stability, safety, speed and reliability for travel on high seas, ice packs, shifting ice floes and snow. It must be made to travel in all weather extremes. In this invention the configuration and design meet all, these requirements. Its floating pontoons with high rising tapered fronts act as big skis to ride up over ice ridges and snow drifts as well as cut through waves. The cabin set on long legs over the pontoons gives ground clearance for obstructions. The long length and wide base with weight distribution gives it a low center of gravity and stability for the high speeds in strong winds,reached with …
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 8, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2011.
- 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.