Focussable intraocular lens
CA 1188454 A · Owner: Levy, Chauncey F. · Inventors: Levy, Chauncey F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An intraocular lens that provides accommodation in response to contraction and relaxation of the ciliary body. Accommodiation is achieved by motion of the lens, or of an element of a lens system alternately, toward and away from the fovea. Means are provided for biasing the lens or the movable element, toward the fovea so that when the ciliary body contracts it counters the bias and causes the lens to move away from the fovea toward the cornea.
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
- Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.