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Expired Canadian patentCanada

Autostereoscopic display with multiple sets of blinking illuminating lines and light valve

CA 2012679 C · Owner: Eichenlaub, Jesse B. · Inventors: Eichenlaub, Jesse B.

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 video display employs a flat surface upon which is displayed more than one set of thin, blinking light emitting sites. A transmissive light valve in front of the surface is capable of displaying images by means of varying the transparency of individual picture elements arranged in a grid pattern across its surface, and of displaying different images as different sets of light emitting lines blink on. The surface and light valve are arranged in such a way that an observer always sees each of the light emitting lines through one set of pixels with the left eye and another set of pixels with the right eye. The display is normally an autostereoscopic display, but it can be also made as a high …

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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 March 21, 1990 and granted February 13, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 1990
GrantedFebruary 13, 1996
Term endedMarch 21, 2010
Patent numberCA 2012679 C
Classification (IPC)G09G3/00

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 21, 1990Patent grantedFeb 13, 1996Term endedMarch 21, 2010

Sources & verification

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