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Expired Canadian patentCanada

Impulse sprinkler with deflector

CA 1315833 C · Owner: Ferguson, Michael D. · Inventors: Whitehead, Stephen P.; Ferguson, Michael D.

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 An impulse sprinkler. The sprinkler includes a base and a main body having a nozzle for dispensing water. The main body also includes a frame defining a window. The main body is pivotably mounted on the base so that the main body can rotate about a vertical axis. The sprinkler further includes an impulse arm for deflection by water dispensed by the nozzle with the impulse arm being pivotably mounted on the main body so that the arm extends through the window and is also rotatable about a vertical axis. A spring is positioned in the window for biasing the impulse arm to a position where it will be deflected by water from the nozzle. The sprinkler also includes an …

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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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1989
GrantedApril 6, 1993
Term endedApril 6, 2010
Patent numberCA 1315833 C
Classification (IPC)B05B3/08 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 29, 1989Patent grantedApril 6, 1993Term endedApril 6, 2010

Sources & verification

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