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Expired Canadian patentCanada

Wet/dry vac

CA 1300831 C · Owner: Falk, John L. · Inventors: Bigley, James E.; Falk, John L.; Sallee, E. Charles

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 wet/dry vacuum cleaner unit having a transparent tube on the exterior of its tank that serves as a sight gage to display the volume of water collected in the tank and as a drain hose for conveniently discharging water from the tank. A suspension system molded in the bottom wall of the tank allows the unit to be tipped on its wheels for draining purposes and allows the unit to readily trail the pull of a vacuum hose.

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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.
FiledJanuary 21, 1988
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1300831 C
Classification (IPC)A47L5/36 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJan 21, 1988Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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