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Expired Canadian patentCanada

Wiper blade

CA 1259763 A · Owner: Toyoda Gosei Co. Ltd. · Inventors: Sugita, Hiroshi; Yasukawa, Takemasa; Aritake, Masanori

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 wiper blade capable of preventing a harsh metallic noise which is made by the direct impact of a metallic backing plate associated therewith on a blade holder. Rubber riser parts are formed integrally with the body of the wiper blade so as to extend upward from the upper surface of the body. The riser parts cover at least the longitudinal side edges of the metallic backing plate placed on the upper surface of the body so that the longitudinal side edges of the backing plate will not impact directly on the blade holder.

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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 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 9, 1985
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1259763 A
Classification (IPC)B60S1/38

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 9, 1985Patent grantedSep 26, 1989Term endedSep 26, 2006

Sources & verification

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