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Expired Canadian patentCanada

Liquid spray gun with non-circular horn air outlet passageways and apertures

CA 2552075 C · Owner: Joseph, Stephen C. P. · Inventors: Frederickson, Franklyn L.; Joseph, Stephen C. P.; Qiblawi, Jameel R.

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

The present invention provides a liquid spray gun with several improved features, including (1) non-cylindrical air passageways on air horns included in an air cap portion of a body assembly that provide improved shape and uniformity for the wide elongate stream of liquid formed by the spray gun; (2) the air cap portion of the body assembly being mounted for manual rotation on a nozzle portion of the body assembly between positions defined by stops and retained at those positions by friction; and (3) the body assembly through which passes liquid sprayed by the spray gun being molded of polymeric material and being manually releasable from a metal platform portion of the spray gun …

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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

  • Filed December 16, 2004 and granted September 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 16, 2004
GrantedSeptember 3, 2013
Term endedDecember 16, 2024
Patent numberCA 2552075 C
Classification (IPC)B05B7/08

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 16, 2004Patent grantedSep 3, 2013Term endedDec 16, 2024

Sources & verification

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