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Canadian application, no grantCanada

Maintenance monitoring system for detachable ski lift carrier vehicles

CA 2097204 A1 · Owner: Spencer, Paul William · Inventors: Spencer, Paul William

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 maintenance monitoring system for detachable carrier vehicles of a moving transportation system includes a bar code label or other readable, medium containing vehicle identification information on each of the carrier, vehicles of the transportation system a stationary input unit positioned for reading the vehicle identification information from each of the carrier vehicles as the carrier vehicles pass a specified point along the route of the transportation system, a decoder for converting the vehicle identification information read by the input unit to a computer data format and a computer, system for receiving the vehicle identification information for processing, the vehicle …

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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 May 28, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 1993
GrantedNo grant recorded
Term endedMay 28, 2013
Patent numberCA 2097204 A1
Classification (IPC)B61B11/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 28, 1993Term endedMay 28, 2013

Sources & verification

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