Walking transport vehicle
CA 2078151 C · Owner: Lobachev, Vladilen I. · Inventors: Lobachev, Ivan V.; Lobachev, Vladilen I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A walking transport vehicle that is comprised of a platform with two closed guides mounted on its bottom surface, said guides having rectilinear sections and curved sections with a common center of curvature. Movably mounted in the guides are the upper ends of extensible and retractable legs. The transport vehicle also comprises of a leg drive mechanism to displace legs along the guide incorporating a continuous band conveyor with conveyor branches passing respectively along the sections of the guide, and a similar leg drive unit to displace legs along the guide.
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 March 13, 1991 and granted October 19, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2013.
- 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.