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Expired Canadian patentCanada

Wiper wash attachment

CA 1077657 A · Owner: Capaldi, Tony · Inventors: Capaldi, Tony

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 spray of wash water is delivered to the central area of a windshield wiper blade by an attachment incorporating a pump which is operated by movement of the wiper back and forth about a pivot in the window frame. Air is also delievered to such area by a fitting having a Y-valve for air and/or wash water under the control of the wiper wash button of the auto.

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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 May 20, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 1997.
  • 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—
GrantedMay 20, 1980
Term endedMay 20, 1997
Patent numberCA 1077657 A
Classification (IPC)B60S1/48 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMay 20, 1980Term endedMay 20, 1997

Sources & verification

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