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Expired Canadian patentCanada

System for dispensing precisely metered quantities of a fluid and method ofutilizing the system

CA 1279616 C · Owner: Uffenheimer, Kenneth F. · Inventors: Uffenheimer, Kenneth F.; Negersmith, Kent M.

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 fluid delivery system for dispensing precisely metered quantities of a fluid, and more particularly a fluid, delivery system incorporating a diaphragm pump for effectuation of the precise control over the dispensing of a metered quantity of the fluid through the formation of a fluid flow-occluding air bubble at the point of discharge inhibiting the formation of droplets tending to adversely influence the accuracy of the system. Also disclosed is a method for delivering and dispensing precisely metered quantities of a fluid through the utilization of the system.

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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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 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.
FiledApril 10, 1987
GrantedJanuary 29, 1991
Term endedJanuary 29, 2008
Patent numberCA 1279616 C
Classification (IPC)G01F11/08

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 10, 1987Patent grantedJan 29, 1991Term endedJan 29, 2008

Sources & verification

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