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Expired Canadian patentCanada

Material handling vehicle identification tag

CA 2047958 C · Owner: Kellogg, David Lawrence · Inventors: Kellogg, David Lawrence; Bachman, Michael Scott; Simmons, James Miles, Jr.

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

The present invention features a material handling vehicle identification system. The material handling vehicle has a universal system processor for controlling the vehicle speed, acceleration, direction and motion of a plurality of different vehicles. A semiconductor memory device is permanently affixed to the chassis of the vehicle during the manufacturing process. This memory device contains a unique identification tag. The identification tag is remotely disposed from, but operatively connected to the system processor. The identification tag includes data for uniquely identifying the material handling vehicle. The system processor can control the performance of the vehicle as a function …

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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 July 26, 1991 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 26, 1991
GrantedJanuary 19, 1999
Term endedJuly 26, 2011
Patent numberCA 2047958 C
Classification (IPC)B60L15/32 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 26, 1991Patent grantedJan 19, 1999Term endedJuly 26, 2011

Sources & verification

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