US4582402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color-imparting contact lenses
Assignee: WJ ACQUISITION CORP
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Filing: 1984-04-16
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Granted: 1986-04-15
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Expires: 2004-04-16
Abstract
Abstract A colored contact lens comprising a pupil section and an iris section. A colored, opaque, intermittent pattern is deposited over the entire iris section, but a substantial portion within the interstices of the pattern is left uncolored. The lens is capable of coloring the iris of the wearer, yet permitting visualization of the structure of the iris. A fundamental color change, e.g. from brown to blue, is possible, yet the colored iris has a natural appearance.
Inventors
- 👤 Julius Z. Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00865; B29D11/00894; B29D11/00903; G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/046; B29K; B29K2995/00; B29K2995/0018; B29K2995/0025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
A corneal contact lens comprising a transparent pupil section, an iris section surrounding said pupil section, and a colored, opaque, intermittent pattern deposited on a surface over said entire iris section, that leaves a substantial portion within the interstices of said pattern uncolored, said pattern covering at least 30 percent of the surface of said iris section, the elements of the pattern being undiscernable to the ordinary viewer, thereby providing a lens capable of coloring the iris but permitting visualization of the structure of the iris of a person wearing said lens.
Claim 2
Dependent Claim
92 words
A corneal contact lens comprising a transparent pupil section, an iris section surrounding said pupil section, and a colored, opaque, intermittent pattern deposited on a surface over said entire iris section, that leaves a substantial portion within the interstices of said pattern uncolored, said pattern covering at least 30 percent of the surface of said iris section, the elements of the pattern being undiscernable to the ordinary viewer, thereby providing a lens capable of coloring the iris but permitting visualization of the structure of the iris of a person wearing said lens.
Claim 3
Dependent Claim
21 words
The lens of claim 1 constructed of a hydrophylic material and further comprising a transparent peripheral section surrounding said iris section.
Claim 4
Dependent Claim
14 words
The lens of claim 2 wherein said pattern is a series of opaque dots.
Claim 5
Dependent Claim
14 words
The lens of claim 1 wherein said pattern is a series of opaque dots.
Claim 6
Dependent Claim
17 words
The lens of claim 1 wherein the elements of the pattern are of more than one color.
Claim 7
Dependent Claim
21 words
The lens of claim 1 wherein the pattern is not uniform, thereby allowing enhancement of the fine structure of the iris.
References Cited (Backward Citations)
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US3536386A
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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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |