Apparatus, systems and methods for levitating and moving objects
CA 2452838 C · Owner: Sparks, Michael T. · Inventors: Sparks, Michael T.; Lamb, Karl J.; Barrett, Michael S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus, systems and methods for levitating and moving objects are shown and described herein. The embodiments incorporate a track with lower rails having permanent magnets abutted against each other and aligned such that the upper surface of each of the lower rails has a uniform polarity; and the object with upper rails having permanent magnets aligned with the lower rails and oriented to oppose the polarity of the lower permanent magnets. Ferrous backing plates behind the lower rails and/or the upper rails may be incorporated. Embodiments may also incorporate a third rail of an electroconductive material and a , driving disc positioned near the third rail. Permanent magnets in …
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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 July 2, 2002 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2024.
- 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.