Patent CH275645A successfully refreshed from Google Patents.
Patent US4639105A successfully refreshed from Google Patents.
US4639105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spin cast ocular cosmetic device with color separation
Assignee: Sunsoft Corp
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Filing: 1985-08-30
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Granted: 1987-01-27
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Expires: 2005-08-30
Abstract
Abstract A spin cast cosmetic device to be worn on the cornea that changes the apparent color of the eye. The device has color bands of pigments and dyes which are separated by the spin casting operation. Pigment particles migrate and are separated, the dyes do not migrate. Unexpectedly the pigments separate into two concentric bands, one at the center and one at the periphery. The area between the pigment bands is colored by the soluble dye.
Inventors
- 👤 Charles W. Neefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:23
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/0048; B29D11/00519; B29C; B29C41/00; B29C41/02; B29C41/04; B29C41/042; B29C41/045; B29D11/00019; G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/046; B29L; B29L2031/00; B29L2031/76; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
140 words
A rotationally cast ocular cosmetic device that alters the apparent color of the eye and is substantially the size and curvature of the cornea upon which it is placed and has a central visual aperture substantially the size of the pupil and positioned on the cornea around the pupil of the eye having a plurality of concentric color components made from a composition comprising a liquid monomer, a soluble dye and suspended pigment particles, the composition is placed in a concave mold, having a central conical protrusion around which the central open visual aperture is formed, and rotated around the central mold axis allowing the suspended pigment particles to migrate toward the device periphery, the soluble dye does not migrate, the rotating liquid monomer is allowed to polymerize forming a solid cosmetic device having a plurality of concentric color components.
Claim 2
Dependent Claim
140 words
A rotationally cast ocular cosmetic device that alters the apparent color of the eye and is substantially the size and curvature of the cornea upon which it is placed and has a central visual aperture substantially the size of the pupil and positioned on the cornea around the pupil of the eye having a plurality of concentric color components made from a composition comprising a liquid monomer, a soluble dye and suspended pigment particles, the composition is placed in a concave mold, having a central conical protrusion around which the central open visual aperture is formed, and rotated around the central mold axis allowing the suspended pigment particles to migrate toward the device periphery, the soluble dye does not migrate, the rotating liquid monomer is allowed to polymerize forming a solid cosmetic device having a plurality of concentric color components.
Claim 3
Dependent Claim
62 words
The subject matter set forth in claim 1 wherein the cosmetic device is removed from the spin cast mold by first wetting the device and drying the device, the concave air exposed device surface drys before the convex surface adjacent to the spin cast mold, the change in curvature produced by the wet and dry surfaces frees the device from the mold.
Claim 4
Dependent Claim
19 words
The subject matter set forth in claim 1 wherein antimicrobial agents are added to the liquid monomer before polymerization.
Claim 5
Dependent Claim
14 words
The subject matter set forth in claim 1 wherein the device is a hydrogel.
Claim 6
Dependent Claim
17 words
The subject matter set forth in claim 1 wherein the device is made from a translucent material.
Claim 7
Dependent Claim
17 words
The subject matter set forth in claim 1 wherein the pigments and dye are of different colors.
Claim 8
Dependent Claim
22 words
The subject matter set forth in claim 1 wherein the opening at the device center prevents hypoxia and the formation of edema.
Claim 9
Dependent Claim
159 words
A rotationally cast ocular cosmetic device that alters the apparent color of the eye having a plurality of concentric color components and is substantially the size and curvature of the cornea upon which it is placed and has an open central visual aperture substantially the size of the pupil and positioned on the cornea around the pupil of the eye, made from a composition comprising a liquid monomer, a soluble dye and suspended pigment particles, the composition is placed in a concave mold having a central conical protrusion which forms the central visual aperture and the concave mold is rotated around its central axis, some of the suspended pigment particles migrate to the device periphery, other suspended pigment particles remain adjacent to the open central visual aperture, the soluble dye does not migrate, the rotating liquid monomer is allowed to polymerize forming a solid cosmetic device having a plurality of concentric color components surrounding the central open visual aperture.
Claim 10
Dependent Claim
159 words
A rotationally cast ocular cosmetic device that alters the apparent color of the eye having a plurality of concentric color components and is substantially the size and curvature of the cornea upon which it is placed and has an open central visual aperture substantially the size of the pupil and positioned on the cornea around the pupil of the eye, made from a composition comprising a liquid monomer, a soluble dye and suspended pigment particles, the composition is placed in a concave mold having a central conical protrusion which forms the central visual aperture and the concave mold is rotated around its central axis, some of the suspended pigment particles migrate to the device periphery, other suspended pigment particles remain adjacent to the open central visual aperture, the soluble dye does not migrate, the rotating liquid monomer is allowed to polymerize forming a solid cosmetic device having a plurality of concentric color components surrounding the central open visual aperture.
Claim 11
Dependent Claim
62 words
The subject matter set forth in claim 8 wherein the cosmetic device is removed from the spin cast mold by first wetting the device and drying the device, the concave air exposed device surface drys before the convex surface adjacent to the spin cast mold, the change in curvature produced by the wet and dry surfaces frees the device from the mold.
Claim 12
Dependent Claim
19 words
The subject matter set forth in claim 8 wherein antimicrobial agents are added to the liquid monomer before polymerization.
Claim 13
Dependent Claim
14 words
The subject matter set forth in claim 8 wherein the device is a hydrogel.
Claim 14
Dependent Claim
17 words
The subject matter set forth in claim 8 wherein the device is made from a translucent material.
Claim 15
Dependent Claim
17 words
The subject matter set forth in claim 8 wherein the pigments and dye are of different colors.
Claim 16
Dependent Claim
22 words
The subject matter set forth in claim 8 wherein the opening at the device center prevents hypoxia and the formation of edema.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |