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Expired Canadian patentCanada

Sprayer nozzle

CA 1047072 A · Owner: Root-Lowell Manufacturing Co. · Inventors: Collins, Dean E.

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

Abstract of the Disclosure A nozzle which may be used with a low volume sprayer and which includes a plurality of spirally directed vanes positioned about a liquid inlet tube. Air is forced between the vanes creating a vortex which directs the liquid being expelled from the inlet tube against the vanes and then shears the liquid from the edges of the vanes in atomized form.

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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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
  • 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—
GrantedJanuary 23, 1979
Term endedJanuary 23, 1996
Patent numberCA 1047072 A
Classification (IPC)A01N25/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 23, 1979Term endedJan 23, 1996

Sources & verification

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