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Expired Canadian patentCanada

Cleaning device

CA 1319475 C · Owner: Ballwebber, Arnold E. · Inventors: Ballwebber, Arnold E.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A cleaning device comprising means for oscillating a manifold upon which is mounted at least one spray nozzle pointed in a generally downward direction. The spray nozzle then oscillates about an axis parallel to the surface to be cleaned. The means for oscillation may be electric (AC or DC) mechanical or, hydraulic where the driving motion may be linear rotational or, oscillating. The hydraulic system is driven by the cleaning solution. Brushes or other mechanical devices may be integrated with or attached to the manifold or other areas of the cleaning device. A vacuum manifold is provided to remove cleaning solution and contaminates or dirt. Page 1

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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 June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 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.
FiledOctober 26, 1988
GrantedJune 29, 1993
Term endedJune 29, 2010
Patent numberCA 1319475 C
Classification (IPC)A47L11/00 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 26, 1988Patent grantedJune 29, 1993Term endedJune 29, 2010

Sources & verification

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