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Expired Canadian patentCanada

Light scanning system for measurement of orientation and physical features of a workpiece

CA 2035114 C · Owner: Fmc Corporation · Inventors: Rogers, Steven W.; Baird, Michael L.; Christian, Donald J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A structured light scanning system observes interprets and provides structural feature size position, and movement data in automotive service equipment applications where such feature characteristics must be determined either preliminary to or ultimately for measurement of quantities affecting automotive performance, such as tire/rim assembly balance runout and, alignment or brake surface planarity and smoothness.

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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 January 28, 1991 and granted November 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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.
FiledJanuary 28, 1991
GrantedNovember 9, 1999
Term endedJanuary 28, 2011
Patent numberCA 2035114 C
Classification (IPC)G01M1/22 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJan 28, 1991Patent grantedNov 9, 1999Term endedJan 28, 2011

Sources & verification

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