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Expired Canadian patentCanada

Laser-based dimensioning system

CA 2178265 C · Owner: Elwood, Michael K. · Inventors: Stringer, Bradley J.; Elwood, Michael K.

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 method and apparatus for measuring the dimensions and determining the three-dimensional, spatial volume of objects particularly small objects. Reflected laser light sensors are employed. A stationary measurement embodiment of the apparatus may be employed to measure regular cuboidal objects. A dynamic or in-motion, embodiment may be employed to measure the dimensions of cuboidal objects or a three-dimensional outline of objects of irregular configuration.

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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 June 5, 1996 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1996
GrantedAugust 7, 2001
Term endedJune 5, 2016
Patent numberCA 2178265 C
Classification (IPC)G01B11/04

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 5, 1996Patent grantedAug 7, 2001Term endedJune 5, 2016

Sources & verification

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