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Expired Canadian patentCanada

Positioning device

CA 2087136 C · Owner: Elektriciteit Voor Goederenbehandeling Marine En Industrie · Inventors: Van De Pas, Leo Jozef Maria; Vanhoutte, Rudi Marcel Anna

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

15, Positioning device. Positioning device characterized in that it is equipped with a linear scanning device (5) and at least one support (1) with at least one contrasting code line (3) provided on it of which a useful part is directed at an angle other than zero and 90 degrees with regard to the scanning device (5) and with at least one extra line forming a line of reference (7) and forming an angle other than zero and 90 degrees with the code line (3) whereby the relative position of the above-mentioned lines (3 and 7) can be read by the scanning device (5).

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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 12, 1993 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 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.
FiledJanuary 12, 1993
GrantedMay 30, 2000
Term endedJanuary 12, 2013
Patent numberCA 2087136 C
Classification (IPC)G05D3/12 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 12, 1993Patent grantedMay 30, 2000Term endedJan 12, 2013

Sources & verification

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