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Expired Canadian patentCanada

Combined oscillating and unidirectional agitator for automatic washer

CA 1045401 A · Owner: Whirlpool Corporation · Inventors: Platt, Clark I.

CIPO record

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

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Abstract From the Canadian patent

COMBINED OSCILLATING AND UNI-, DIRECTIONAL AGITATOR FOR AUTOMATIC WASHER" ABSTRACT OF THE DISCLOSURE, Improved agitation means for use in an automatic clothes washing machine of the type in which an agitator is oscillated by means of a drive mechanism to secure agitation of the clothes. The present invention provides an upper agitator element coaxial with a lower agitator element the upper agitator element being driven through a one-way clutch, from the same drive shaft which drives the lower agitator element, the upper agitator element being provided with vane means which urge clothes downwardly toward the lower agitator element and impart a highly efficient rollover motion to the clothes.

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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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
  • 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—
GrantedJanuary 2, 1979
Term endedJanuary 2, 1996
Patent numberCA 1045401 A
Classification (IPC)D06F13/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 2, 1979Term endedJan 2, 1996

Sources & verification

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