Method of coloring a contact lens
CA 2595563 C · Owner: Johnson & Johnson Vision Care, Inc. · Inventors: Streibig, Daniel G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods of coloring contact lenses are disclosed. The methods comprises a step of forming a cliché. The cliché comprises a piece of material having at least one depression formed therein. The methods also comprise a step of introducing a fluent colorant into the depression of the cliché. Still further methods , comprise a step of transferring at least some of the colorant from the depression to a contact lens.
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 12, 2006 and granted October 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.