Optical diagnostic tool
CA 2307279 C · Owner: Khoury, Elie · Inventors: Khoury, Elie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical diagnostic tool for allowing an observer to obtain optical information, regarding various characteristics of the eyes of an intended patient. The tool includes an, enclosure defining a peripheral wall a patient end wall and an observer end wall. An, optical dividing wall is positioned within the enclosure. The optical dividing wall divides, the enclosure into a first and a second optical chamber allowing for the , creation of, distinct lighting pattern in the first and second optical chambers. A first and a second, patient eye aperture both extend through the patient end wall. The first and second, patient eye apertures individually establish visual communication …
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 May 9, 2000 and granted October 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2022.
- 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.