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Expired Canadian patentCanada

Microprocessor motor controller having discrete processing cycles

CA 2001122 C · Owner: Mcdermott, Francis E. · Inventors: Salazar, Edilberto I.; Weisman, Ido; Digiulio, Peter C.

CIPO record

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Abstract From the Canadian patent

The motor controller system controls the respective motors of a plurality of cooperative apparatus associated with an article processing system, the article processing system for performing a plurality of functions upon an article traversing the article processing system and comprises a motor driver board having a plurality of input channels and a plurality of respective output channels. The motors are in line communication with a respective one of the output channels of the motor driver board. A programmable microprocessor is in bus communication with the driver board's input channels. A plurality of sensors are respectively mounted to each of the apparatus and in bus communication with …

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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 October 20, 1989 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1989
GrantedDecember 22, 1998
Term endedOctober 20, 2009
Patent numberCA 2001122 C
Classification (IPC)G05B19/41 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 20, 1989Patent grantedDec 22, 1998Term endedOct 20, 2009

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