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Expired Canadian patentCanada

Windshield wiper device for motor vehicles

CA 1280562 C · Owner: Robert Bosch Gmbh · Inventors: Kuhbauch, Gerd

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 windshield wiper device for motor vehicles includes a cup-shaped housing whose jacket is in the form of a stationary inner transmission gear and whose bottom supports for rotation an oscillating shaft driven by a drive. The oscillating shaft is firmly connected to a two-arm swing lever. One arm of the swing lever supports for rotation a shaft Journal whose one end is firmly connected to a transmission gear and whose other end is connected to a control crank. The one arm also supports slide guides for guiding a wiper arm in a radial direction relative to the oscillating shaft. The control crank is linked to the wiper arm to impart thereto an oscillatory movement in the radial direction. …

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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 February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.
FiledJanuary 8, 1987
GrantedFebruary 26, 1991
Term endedFebruary 26, 2008
Patent numberCA 1280562 C
Classification (IPC)B60S1/34 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJan 8, 1987Patent grantedFeb 26, 1991Term endedFeb 26, 2008

Sources & verification

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