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Expired Canadian patentCanada

Valve and arrangement for fire suppression water sprinkler system

CA 1288027 C · Owner: Mchugh, George J. · Inventors: Mchugh, George J.

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 valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports. The selective rotation of the valve member interrupts a flow of water through the valve and permits a flow at two different preselected flow rates.

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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 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 12, 1987
GrantedAugust 27, 1991
Term endedAugust 27, 2008
Patent numberCA 1288027 C
Classification (IPC)G01M99/00 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJune 12, 1987Patent grantedAug 27, 1991Term endedAug 27, 2008

Sources & verification

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