US4558931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored soft contact lens
Assignee: COLOR OPTICS Ltd A NEW YORK LP
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Filing: 1982-04-02
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Granted: 1985-12-17
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Expires: 2002-04-02
Abstract
Abstract A cosmetic contact lens is lathe cut from a body of stacked discs fused together. The discs are made from hydrophilic polymer, some of which are colored (pigmented or dyed). The pupillary area is formed in a central zone of the lens from a clear layer. The secondary zone formed about the central zone is formed at least partly from one or more colored layers. The peripheral zone formed about the secondary zone is formed from a clear layer. All of the layers are disposed generally parallel to the circular edge of the lens, and the layers may be flat or they may be segments of spheres. This construction provides concentric rings of colors in blended, overlapping relationship for covering the iris and giving a cosmetic effect.
Inventors
- 👤 Ari Fuhrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:18
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/08; B29; B29D; B29D11/00; B29D11/00009; B29D11/00038; B29D11/00048; B29D11/00317; B29D11/00932; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02B1/043; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/046
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
A cosmetic contact lens in the shape of a circular segment of a sphere and having a circular edge, comprising stacked, fused clear and colored layers of a water swellable hydrophilic crosslinked polymer of 2-hydroxyethylmethacrylate, with a pupillary area formed in a central zone thereof from a clear layer, a secondary zone formed about said central zone at least partly from one or more colored layers, and a peripheral zone formed about the secondary zone from a clear layer, each of said layers being formed from the same polymer, and said colored layers and at least one clear layer being disposed in overlapping relationship and parallel to the circular edge of the lens; and said lens being sized and shaped to be worn on the eye with said central zone registering with the pupil of the eye and said secondary zone covering the iris of the eye, the construction of said lens providing concentric circles of color which are diffused and blended together where the adjacent layers are in overlapping relationship.
Claim 2
Dependent Claim
171 words
A cosmetic contact lens in the shape of a circular segment of a sphere and having a circular edge, comprising stacked, fused clear and colored layers of a water swellable hydrophilic crosslinked polymer of 2-hydroxyethylmethacrylate, with a pupillary area formed in a central zone thereof from a clear layer, a secondary zone formed about said central zone at least partly from one or more colored layers, and a peripheral zone formed about the secondary zone from a clear layer, each of said layers being formed from the same polymer, and said colored layers and at least one clear layer being disposed in overlapping relationship and parallel to the circular edge of the lens; and said lens being sized and shaped to be worn on the eye with said central zone registering with the pupil of the eye and said secondary zone covering the iris of the eye, the construction of said lens providing concentric circles of color which are diffused and blended together where the adjacent layers are in overlapping relationship.
Claim 3
Dependent Claim
47 words
A cosmetic lens according to claim 1, wherein said colored layers of said secondary zone are segments of spheres each having a radius flatter than the radius of the spherical shape of the lens and each terminating with its circular periphery disposed parallel to said circular edge.
Claim 4
Dependent Claim
13 words
A cosmetic lens according to claim 1, wherein said colored layers are translucent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |