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Expired Canadian patentCanada

Gun for extruding sealant

CA 1080172 A · Owner: Toray Silicone Company · Inventors: Ichinose, Yasuo

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

What is disclosed is an improved sealant compound extruding gun wherein the improvement comprises the use of a flexible shield cap which fits inside the sealing gun nozzle and itself forms the extrusion gun nozzle. The object of the flexible shield cap is to prevent soiling of the inside of the gun with sealing compound and also to allow flexibility in the width of the nozzle so that different width joints can be serviced by the same extrusion gun. The package for the sealing compound is designed to enhance the effectiveness of the non-soiling feature of the flexible shield cap.

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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 June 24, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 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—
GrantedJune 24, 1980
Term endedJune 24, 1997
Patent numberCA 1080172 A
Classification (IPC)B65D83/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 24, 1980Term endedJune 24, 1997

Sources & verification

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