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Expired Canadian patentCanada

System and method of waste management

CA 2604113 C · Owner: Qing, Richard · Inventors: Vitanov, Kamen; Bibr, Viera; Qing, Richard

CIPO record

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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 waste management system and method of registering and deleting application waste is provided. The waste management system comprises a waste registration module for registering application waste and a waste deletion module for deleting the registered waste based upon the deletion priority. The waste registration module includes a deletion priority unit for assigning deletion priority to registered waste. The method comprises the steps of registering application waste, assigning deletion priority to registered waste and , deleting the registered waste based upon the deletion priority.

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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 April 18, 2006 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 18, 2006
GrantedFebruary 21, 2012
Term endedApril 18, 2026
Patent numberCA 2604113 C
Classification (IPC)G06F12/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 18, 2006Patent grantedFeb 21, 2012Term endedApril 18, 2026

Sources & verification

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