Imaginograph
CA 2120761 C · Owner: Nader-Esfahani, Rahim · Inventors: Nader-Esfahani, Rahim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Imaginograph is an image (18) on a screen which is mathematically generalised optical illusion to create psychological three dimensionality. These pic-, tures are the would be "merged images in the brain" produced outside the brain. Rather than cresting one picture for the left eye and another for the right an Im-, aginograph is already the result of the analysed signals. Using the property that, when one is looking at a flat picture the brain superimposes the two , substantially the same images (19, 20) in the left and right eyes and produces the same pic-, ture (21) in the brain. Imaginographs are pictures which are formed by superimposing the left and right eye views at the same …
Read the whole patent
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 September 21, 1992 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.