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Expired Canadian patentCanada

Squeegee blade

CA 1191306 A · Owner: Mallory Hardware Products Limited · Inventors: Mallory, George R.

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 squeegee blade comprises an elongated body of plastic material comprising longitudinally co-extruded substantially rigid stiffener and flexible web portions which extend laterally from a longitudinal interface which has a tongue-and-groove configuration in the cross-section of the body wherein the groove is formed in the flexible web and the tongue is formed in the stiffener such that the load applied to the portions of the interface located between the side faces of the tongue-and-groove as a result of flexing of the flexible web are predominantly sheer forces.

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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 August 6, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2002.
  • 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 27, 1983
GrantedAugust 6, 1985
Term endedAugust 6, 2002
Patent numberCA 1191306 A
Classification (IPC)A47L1/15 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 27, 1983Patent grantedAug 6, 1985Term endedAug 6, 2002

Sources & verification

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