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Expired Canadian patentCanada

Spray gun

CA 1084012 A · Owner: Ten Pas, Gary C. · Inventors: Ten Pas, Gary C.

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 dispensing apparatus is provided for mixing and spraying A and B components of urethane foam plastic whereby urethane foam plastic may be sprayed in place. The gun includes structure whereby a solvent for the A and B components may be readily utilized to thoroughly flush the A ant B component valves, the mixing chamber and the mixer for the discharge nozzle and is further constructed in a manner whereby the material handling valves will not be distorted by the materials handled thereby and the gun may be temporarily shutdown for short periods or overnight without the need to turn the flow selectors for the components A and B to the off positions thereof. Further the gun is constructed in, …

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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 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 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.
FiledFebruary 5, 1979
GrantedAugust 19, 1980
Term endedAugust 19, 1997
Patent numberCA 1084012 A
Classification (IPC)B05B7/04 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedFeb 5, 1979Patent grantedAug 19, 1980Term endedAug 19, 1997

Sources & verification

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