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Expired Canadian patentCanada

Mail piece weight quality control system and method

CA 2033377 C · Owner: Metelits, Stanley E. · Inventors: Sansone, Ronald P.; Metelits, Stanley 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

This invention relates to a system for certifying the accuracy of postage payments based on the weights of mail pieces. The expected weight of each mail piece is determined and a mail processing unit receives data relative to the contents to be inserted into an envelope that together form the mail pieces. A high speed weighing scale is located downstream from the mail processing unit to receive the mail pieces after the mail processing unit has inserted selected materials into envelopes. A comparison is made between the expected weight of each mail piece and its measured weight. If the measured weight of a mail piece is found different than the actual weight beyond certain tolerances, it …

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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 28, 1990 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 28, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 28, 2012.
  • 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 28, 1990
GrantedFebruary 27, 2001
Term endedDecember 28, 2010
Patent numberCA 2033377 C
Classification (IPC)B07C5/28 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedDec 28, 1990Patent grantedFeb 27, 2001Term endedDec 28, 2010

Sources & verification

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