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Expired Canadian patentCanada

Valve for dispensing fluid from a container

CA 1306981 C · Owner: Ball, Martin F. · Inventors: Ball, Martin F.

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 which comprises a closure member adapted for attachment to the container. The closure member defines an aperture therein. A hollow grommet of flexible material having a flange portion to one side of the closure member and a tubular portion extends through the aperture in the closure member. A valve rod having at one end a flange engaged with the underside of the flange of the grommet and a hollow stem portion extending through the grommet to protrude therefrom such that upon tilting of the valve rod relative to the closure member the flange of the valve rod parts from the underside of the flange of the grommet to uncover a radial hole in the stem portion through which pressurised …

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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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 9, 1987
GrantedSeptember 1, 1992
Term endedSeptember 1, 2009
Patent numberCA 1306981 C
Classification (IPC)B67D1/04 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedSep 9, 1987Patent grantedSep 1, 1992Term endedSep 1, 2009

Sources & verification

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