US3779648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic lens holder
Assignee: Individual
•
Filing: 1972-02-16
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Granted: 1973-12-18
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Expires: 1992-02-16
Abstract
Abstract A lens holder including a ''''V'''' or ''''U'''' shaped support member mounted between two transparent plates, said support being so sized as to be capable of supporting without deformation a hydrophilic contact lens and forming, with the transparent plates, a container for saline solution. In use, the hydrophilic lens is placed on the support and hydrated in an appropriate solution where the measurements with conventional equipment may be conducted.
Inventors
- 👤 M Poster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:47
CPC Classifications
G; G02; G02C; G02C13/00; A; A45; A45C; A45C11/00; A45C11/005
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
87 words
A method for testing a hydrophilic lens comprising: a. supporting said lens without distortion between a pair of parallel transparent plates spaced about one-fourth inch apart on a U-shaped or V-shaped supporting means, said plates and supporting means forming a fluid and lens holding container, b. simultaneously with said supporting, continuously hydrating said lens with a solution in said container by completely immersing said lens in saiD solution, c. placing said holder in an optical tester for testing, and d. testing said lens with said optical tester.
Claim 2
Independent Claim
87 words
A method for testing a hydrophilic lens comprising: a. supporting said lens without distortion between a pair of parallel transparent plates spaced about one-fourth inch apart on a U-shaped or V-shaped supporting means, said plates and supporting means forming a fluid and lens holding container, b. simultaneously with said supporting, continuously hydrating said lens with a solution in said container by completely immersing said lens in saiD solution, c. placing said holder in an optical tester for testing, and d. testing said lens with said optical tester.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein said plates supporting said lens without distortion are plano glass 35mm film covers.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |