US3102157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corneal contact lens having stop flange engaged by eyelids
Assignee: Individual
•
Filing: 1959-01-02
•
Granted: 1963-08-27
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Gamber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:50
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A CORNEAL CONTACT LENS COMPRISING A CONCAVOCONVEX LENS FORMED OF LIGHT TRANSMITTING MATERIAL HAVING A MARGINAL SIZE SMALLER THAN THE LIMBUS PORTION OF THE EYE AND LARGER THAN THE MAXIMUM IRIS OPENING THEREOF, SAID LENS HAVING AN ELONGATED DOWNWARDLY FACING STOP FLANGE WITH ROUNDED ENDS AND ROUNDED OUTER EDGES PROJECTING SUBSTANTIALLY NORMAL TO THE CONVEX SIDE OF THE LENS ALONG THE LOWER EDGE THEREOF, SAID STOP FLANGE BEING
Claim 2
Dependent Claim
68 words
A CORNEAL CONTACT LENS COMPRISING A CONCAVOCONVEX LENS FORMED OF LIGHT TRANSMITTING MATERIAL HAVING A MARGINAL SIZE SMALLER THAN THE LIMBUS PORTION OF THE EYE AND LARGER THAN THE MAXIMUM IRIS OPENING THEREOF, SAID LENS HAVING AN ELONGATED DOWNWARDLY FACING STOP FLANGE WITH ROUNDED ENDS AND ROUNDED OUTER EDGES PROJECTING SUBSTANTIALLY NORMAL TO THE CONVEX SIDE OF THE LENS ALONG THE LOWER EDGE THEREOF, SAID STOP FLANGE BEING
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |