US3574741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonamidophenalkylamines
Assignee: Mead Johnson and Co LLC
•
Filing: 1969-04-14
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Granted: 1971-04-13
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Expires: 1989-04-14
Abstract
Abstract PHENALKYLAMINE COMPOUNDS HAVING BOTH THE HYDROXYL AND SULFONAMIDO GROUPS IN THE PHENYL RING CONSTITUTE A NEW CLASS OF HIGHLY ACTIVE SYMPATHOMIMETIC AGENTS.
Inventors
- 👤 William A Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16; A61K31/18; C; C07; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37; C07C205/44; C07C311/00; C07C311/01; C07C311/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |