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Expired Canadian patentCanada

Universal control system with alarm history tracking for mobile material distribution apparatus

CA 2201549 C · Owner: Morton, Joel T. · Inventors: Morton, Joel T.; Wood, John 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 control system for controlling the operation of a mobile distribution apparatus is disclosed. The disclosed control system includes an alarm tracking system wherein any errors noted by the control system are recorded in an addressable memory in chronological order. This addressable memory can be read out at any time in order to perform diagnostics and the like. In order to control the length of the list of errors generated by the system, the system will only record the same error three times. Upon the fourth occurrence of a given error the, oldest record of the error is deleted. In addition the, control system classifies errors into distinct categories and provides the user of the system …

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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 2, 1997 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2019.
  • 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 2, 1997
GrantedDecember 5, 2000
Term endedApril 2, 2017
Patent numberCA 2201549 C
Classification (IPC)G05B11/01 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 2, 1997Patent grantedDec 5, 2000Term endedApril 2, 2017

Sources & verification

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