Device for ocular aqueous drainage
CA 2516976 C · Owner: Lisk, James Reid, Jr. · Inventors: Robledo, Phillip Vincent; Hampton, Scott M.; Memmen, James E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ophthalmic implant having a body for positioning in a recess created in the sclera, feet for positioning in the anterior chamber and a neck between the , body and the feet for positioning in a scleral opening created between the scleral recess and the anterior chamber. The implant feet extend beyond the implant body and have a curvature approximating the curvature of the anterior chamber. The implant has drainage passageways for draining ocular fluid from the anterior chamber. The passageways are formed in outer surfaces or through the interior of the implant. Interior passageways are formed in surfaces of layers of the implant or by voids in inner layers of the implant. Related …
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 December 18, 2003 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2025.
- 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.