US4087866A
Expired / Lapsed
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Intraocular lens
Assignee: Wyeth Holdings LLC
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Filing: 1977-04-26
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Granted: 1978-05-09
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Expires: 1997-04-26
Abstract
Abstract An intraocular lens for implantation in the anterior chamber of the human eye is provided. The lens is convexo-planar with the planar surface facing the cornea.
Inventors
- 👤 D. Peter Choyce
- 👤 Mohammed Jalie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1602; A61F2/1605; A61F2002/1681
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
An intraocular lens for insertion in the anterior chamber of the eye comprising a lens portion having an anterior planar surface and a convex posterior surface, four extensions attached to said lens portion, said extensions being arranged in opposed pairs, each of said extensions consisting of a haptic which is bent away from the planar surface to the convex surface and a locating foot extending outwardly from the haptic and substantially parallel to the planar surface, the posterior surfaces of the feet lying in a plane which is posteriorly beyond the apex of the convex surface.
Claim 2
Dependent Claim
96 words
An intraocular lens for insertion in the anterior chamber of the eye comprising a lens portion having an anterior planar surface and a convex posterior surface, four extensions attached to said lens portion, said extensions being arranged in opposed pairs, each of said extensions consisting of a haptic which is bent away from the planar surface to the convex surface and a locating foot extending outwardly from the haptic and substantially parallel to the planar surface, the posterior surfaces of the feet lying in a plane which is posteriorly beyond the apex of the convex surface.
Claim 3
Dependent Claim
18 words
An intraocular lens according to claim 1 wherein the four extensions and lens portion are of unitary construction.
Claim 4
Dependent Claim
13 words
An intraocular lens according to claim 2, wherein the haptics are arcuately bent.
References Cited (Backward Citations)
DE959314C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |