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Canadian application, no grantCanada

Transportation system with linear switched reluctance actuator for propulsion and levitation

CA 2408790 A1 · Owner: Virginia Tech Intellectual Properties, Inc. · Inventors: Ferrari, Leonard A.; Bae, Han-Kyung; Vijayraghavan, Praveen

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Embodiments of the present invention provide a frictionless linear switched reluctance propulsion system. The propulsion system generates both a propulsive force for moving a load linearly and a normal force for lifting , the load. The normal force acts in a direction substantially perpendicular to a direction of the propulsive force.

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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 May 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 11, 2001
GrantedNo grant recorded
Term endedMay 11, 2021
Patent numberCA 2408790 A1
Classification (IPC)B60L13/10

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedMay 11, 2001Term endedMay 11, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.