Primary and supplemental intraocular lens system
CA 2533544 C · Owner: Brady, Daniel G. · Inventors: Rockley, Paul; Brady, Daniel G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An intraocular lens system includes a primary intraocular lens configured to correct vision in a patient, and a supplemental intraocular lens configured to modify the correction provided by the primary intraocular lens. The supplemental intraocular lens, which is substantially completely diffractive is preferably ultrathin. The two lenses may be connected to or separate from, one another. The supplemental intraocular lens may be implanted at the same time as the primary intraocular lens, or added later.
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 July 28, 2004 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2026.
- 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.