Colored contact lens with a more natural appearance
CA 2392341 A1 · Owner: Ocampo, Gerardo J. · Inventors: Ocampo, Gerardo J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A colored contact lens (10) having a non-opaque pupil section (20) an iris , section (22) surrounding the pupil section (20) and a colored, opaque , intermittent pattern made up of a plurality of elements located over the entire iris section (22) that leaves asubstantial portion within the interstices of the pattern non-opaque, the pattern covering an effective amount of the iris section (22) to change the apparent color of the iris the , pattern having a plurality of portions each of the portions being a different shade from each other portion, each of the portions overlapping each other portion at a plurality of points, where at least one of the plurality of portions contains a …
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 January 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 2023.
- 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.