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Expired Canadian patentCanada

Device for whipping cream or egg whites or for preparing mayonnaise

CA 1289133 C · Owner: Hutzler Manufacturing Conpany Inc. · Inventors: Offermann, Axel

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 device for whipping cream or egg whites having a cupshaped cylindrical housing with a preformed bottom a cap, releasably locking the open top a perforated plunger piston, connected to one end of the piston rod and movable within the housing, the piston rod being movable through the cap and formed with a handle at its opposite end, one or two perforated plates spaced from the plunger piston on the piston rod. The perforated disc is biased by a spiral coil spring from the plunger and may be further biased from a second perforated disc. When the discs and plunger are compressed together, any product between them is squeezed out through their holes.

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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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 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.
FiledApril 1, 1987
GrantedSeptember 17, 1991
Term endedSeptember 17, 2008
Patent numberCA 1289133 C
Classification (IPC)B01F11/00

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 1, 1987Patent grantedSep 17, 1991Term endedSep 17, 2008

Sources & verification

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