US2783178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable concentrated sulfaquinoxaline solutions and method for preparing
Assignee: AMERICAN SCIENT LAB Inc
•
Filing: 1954-06-22
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Granted: 1957-02-26
•
Expires: 1974-06-22
Abstract
No abstract record available.
Inventors
- 👤 Philip G White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:47
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE PROCESS FOR MAKING A STABLE SULRAQUINOXALINE CONCENTRATE WHICH COMPRISES, FORMING AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, ADDING SULAQUINOXLINE IN THE AMOUNT OF 50% BY WEIGHT OF THE TOTAL VOLUME OF CONCENTRATE TO BE MADE AND THEREAFTER ADDING WATER TO MAKE THE DESIRED 100% VOLUME.
Claim 2
Dependent Claim
48 words
THE PROCESS FOR MAKING A STABLE SULRAQUINOXALINE CONCENTRATE WHICH COMPRISES, FORMING AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, ADDING SULAQUINOXLINE IN THE AMOUNT OF 50% BY WEIGHT OF THE TOTAL VOLUME OF CONCENTRATE TO BE MADE AND THEREAFTER ADDING WATER TO MAKE THE DESIRED 100% VOLUME.
References Cited (Backward Citations)
US2538092A
Cited
US2578761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |