Device for the stereoscopic examination of a patient's eye
CA 2308525 A1 · Owner: Pertz, Eberhard · Inventors: Widmer, Hansruedi; Lobel, David; Fankhauser, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a system for the stereoscopic examination of a patient's eye using a slit-lamp microscope (3) wherein the patient's eye , (1) is illuminated by a light strip of a predetermined cross section which is emitted by a light source (5). The light source (5) is arranged on the vertical arm (20) of a support (7) and the eye (1) to be examined is placed in an essentially horizontal plane on one side of said support. The stereomicroscope (3) is essentially placed on a plane which is located on the side opposite to the first side of the support (7). The vertical arm (20) of the support (7) is made in the shape of a column having a narrow cross section so as to …
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 November 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 11, 2020.
- 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.