Patent US20050119722A1 successfully refreshed from Google Patents.
US4350676A
Expired / Lapsed
US
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Ophthalmic use of carboxyfluorescein
Assignee: Individual
•
Filing: 1981-05-21
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Granted: 1982-09-21
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Expires: 2001-05-21
Abstract
Abstract A method of using carboxyfluorescein in ophthalmic studies comprising applying of the eye an effective amount of at least one active isomer of carboxyfluorescein.
Inventors
- 👤 Alan M. Laties
- 👤 Richard A. Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:46
CPC Classifications
A; A61; A61K; A61K49/00; A61K49/001; A61K49/0013; A61K49/0017; A61K49/0019; A61K49/0021; A61K49/0041; A61K49/0043; A61K49/006
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
The method of performing ophthalmic studies comprising applying to the eye an effective amount therefor of at least one active isomer of carboxyfluorescein.
Claim 2
Independent Claim
23 words
The method of performing ophthalmic studies comprising applying to the eye an effective amount therefor of at least one active isomer of carboxyfluorescein.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said carboxyfluorescein is administered intraveneously.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said carboxyfluorescein is administered topically.
References Cited (Backward Citations)
US3306820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |