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Expired Canadian patentCanada

Dishwasher pump with particle cutter

CA 1290980 C · Owner: Maytag Corporation · Inventors: Jordan, Lawrence J.; Pille, Charles W.

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

A bidirectional dishwasher pump includes a particle cutter adjacent the ingress to the drain pump cavity. The particle cutter is associated with the pump drive shaft and includes a primary edge portion and a secondary edge portion. Rotation in a first direction effects cutting of particles by the primary edge portion and rotation in a second direction effects relatively reduced particle cutting and radial outward movement of particles by the secondary edge portion.

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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 October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 30, 1988
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1290980 C
Classification (IPC)A47L15/42

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedNov 30, 1988Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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