US4351826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing or reversing cataract formation using acrylamides
Assignee: Massachusetts Institute of Technology
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Filing: 1980-02-29
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Granted: 1982-09-28
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Expires: 2000-02-29
Abstract
Abstract Cataract formation in mammalian lenses can be prevented or reversed by applying a solution of an aldehyde, an acrylamide or a glycol to the lens under conditions that permit the solution to interact with the lens constituents.
Inventors
- 👤 John I. Clark
- 👤 Loretta S. Mengel
- 👤 George B. Benedek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:28
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/765; A61K31/78
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
82 words
A process for preventing or reversing cataract formation in the eye of the lens of a patient which comprises administering directly to the eye a therapeutically effective amount of a physiologically acceptable solution of a composition that interacts with the constituents of the lens that cause lens opacification in order to clarify the lens, said composition being selected from the group consisting of an acrylamide, a mixture of an acrylamide and an aldehyde, and a mixture of an acrylamide and a glycol.
Claim 2
Dependent Claim
82 words
A process for preventing or reversing cataract formation in the eye of the lens of a patient which comprises administering directly to the eye a therapeutically effective amount of a physiologically acceptable solution of a composition that interacts with the constituents of the lens that cause lens opacification in order to clarify the lens, said composition being selected from the group consisting of an acrylamide, a mixture of an acrylamide and an aldehyde, and a mixture of an acrylamide and a glycol.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the acrylamide is polymerized in the lens.
References Cited (Backward Citations)
US3927206A
Cited
US3920810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-27 | 1986-03-29 | 1986-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-27 | 1990-03-29 | 1990-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-27 | 1994-03-29 | 1994-09-28 | $7700.00 | Window Closed / Lapsed |