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Expired Canadian patentCanada

Vibration producing method and apparatus

CA 748639 A · Owner: The Garrett Corporation · Inventors: Leslie S. Wirt

CIPO record

Overview

Drawings and full text

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

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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.

Why it's free to use

  • Granted December 20, 1966. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 1983.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedDecember 20, 1966
Term endedDecember 20, 1983
Patent numberCA 748639 A
Classification (IPC)F41B9/00

Timeline

Timeline From CIPO dates

196719691971197319751977197919811983Patent grantedDec 20, 1966Term endedDec 20, 1983

Sources & verification

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