Steering roller arrangement for a three-wheeled vehicle
CA 2003305 A1 · Owner: Rewitzer, Siegfried · Inventors: Rewitzer, Siegfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A steering roller arrangement for a three-wheeled vehicle A steering roller arrangement for a trackless floor vehicle in the form of a so-called three-wheeled vehicle is described. With this vehicle, in addition to two running wheels, a steering roller is provided which can be swiveled about a vertical axis by means of a ring mount for traveling in a curved line and to achieve a trailing effect. Relative to the rotatable part of the ring mount, the steering roller is movable between two opposite trailing positions such that, with a reversal of the direction of travel, the required alteration of the steering roller trailing effect is brought about by a corresponding adjustment of …
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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 17, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 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.