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Expired Canadian patentCanada

Pot and pan washing machines

CA 1290652 C · Owner: Gault, Thomas D. · Inventors: Gault, Thomas D.; Cantrell, John W.; Cantrell, William R.

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

Improvements in pot and pan washing machines (as opposed to dishwashing machines and drinking glass washing machines); a device adapted to receive large pots and pans used in cooking operations in a restaurant or the like which is downstream, typically, in the work process of cleaning pots and pans, from an initial scraping and scrapping tank then, typically, is followed by a rinsing tank the latter then followed, by a sanitizer tank; a pot and pan washer tank utilizing a multiplicity of relatively high velocity underwater, spaced, apart water input jets on one wall thereof which provide a tank-wide circulating flow from upper back to lower front and then upwards and back within the tank …

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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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.
FiledFebruary 10, 1988
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290652 C
Classification (IPC)B08B7/04 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedFeb 10, 1988Patent grantedOct 15, 1991Term endedOct 15, 2008

Sources & verification

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