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Expired Canadian patentCanada

Actuator system having magnetomechanical cantilever beam

CA 1237761 A · Owner: Identitech Corporation · Inventors: Anderson, Philip M. Iii; Urbanski, Jeffrey C.

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Abstract From the Canadian patent

An actuator system comprises a magnetomechanical cantilever beam adapted to be responsive to magnetic fields of various magnitudes. The system provides precise and rapid repositioning of the free end of the beam corresponding to the magnitude of the applied magnetic field. The beam is comprised of magnetostrictive ferromagnetic amorphous material and provides efficient high, force, high speed actuation to devices requiring electronically controlled variable displacement motion.

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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

  • Granted June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 22, 1985
GrantedJune 7, 1988
Term endedJune 7, 2005
Patent numberCA 1237761 A
Classification (IPC)H01L41/12 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedMarch 22, 1985Patent grantedJune 7, 1988Term endedJune 7, 2005

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