US3823136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iminomethylindolines
Assignee: Mead Johnson and Co LLC
•
Filing: 1972-05-08
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Granted: 1974-07-09
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Expires: 1992-05-08
Abstract
Abstract THIS INVENTION RELATES TO A SERIES OF 1 - IMINOMETHYLINDOLINES WHICH ARE ANALEPTIC AGENTS CAPABLE OF COUNTERACTING CENTRAL NERVOUS SYSTEM DEPRESSANT EFFECTS OF PENTOBARBITAL AND CHLORAL HYDRATE. THEY ALSO EXHIBIT ANALGESIC EFFECTS. THIS INVENTION ALSO RELATES TO A PROCESS FOR THE PREPARATION OF 1-IMINOMETHYLINDOLINES WHICH COMPRIESES REACTION OF AN INDOLINE WITH CARBOXAMIDES SELECTED FROM THE GROUP CONSISTING OF AMIDES, LACTAMS, SYMMETRICAL OR UNSYMMETRICAL UREAS AND HYDRAZIDES. TYPICAL EXAMPLES OF 1-IMINOMETHYLINDOLINE DERIVATIVES ARE 5-ACETYL-1-(2-(1PYRROLINYL))INODINE AND 1-(2-(5,5 - DIMETHYL - 1 - PYRROLINYL))INDOLINE.
Inventors
- 👤 Hua Wu Yao
- 👤 W Lobeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:13
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |