US2518228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amides of dicarboxylic acid derivatives of 2-sulfonilamidothiazole
Assignee: ALLIED LAB Inc
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Filing: 1948-03-20
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Granted: 1950-08-08
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Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Faith Herman Eldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:54
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/50; C07D277/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-(N4-SUCCINAMYLSULFANILAMIDO)-THIAZOLE AND 2-(NA4-PHTHALAMYLSULFANILAMIDO)-THIAZOLE.
Claim 2
Dependent Claim
11 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-(N4-SUCCINAMYLSULFANILAMIDO)-THIAZOLE AND 2-(NA4-PHTHALAMYLSULFANILAMIDO)-THIAZOLE.
References Cited (Backward Citations)
US2324013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |