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Expired Canadian patentCanada

Multi-process power spray washer apparatus

CA 2179631 C · Owner: Mansur Industries Inc. · Inventors: Mansur, Pierre G.

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 self-contained power spray washer, (10) for cleaning articles placed therein the, washer (10) including a washing chamber (20) which is large enough to enclose and rotate an article to be cleaned. A primary filter (30) removes contaminants from a cleaning solution after it has been used, and a solution reservoir (50) receives and holds filtered cleaning solution from the primary filter (30). A fan forced burner (42) heats the solution contained in the reservoir (50), and provides a heat source for contaminant incineration. An oil skimmer (55) removes oil and grease from the solution held in the reservoir (50), and secondary centrifugal filter (70) through which solution is pumped from the …

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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

  • Filed December 27, 1993 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 27, 1993
GrantedJune 1, 1999
Term endedDecember 27, 2013
Patent numberCA 2179631 C
Classification (IPC)B08B3/02 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedDec 27, 1993Patent grantedJune 1, 1999Term endedDec 27, 2013

Sources & verification

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