Patent US2758997A successfully refreshed from Google Patents.
US2758997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-chloro-4-(4-di-n-butylaminobutylamino)-3-methylquinoline and salts thereof
Assignee: STWB Inc
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Filing: 1953-03-19
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Granted: 1956-08-14
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Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Steck Edgar Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:34
CPC Classifications
C; C07; C07C; C07C255/00; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D215/42; C07D215/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 7-CHLORO-4-(4-DI - N - BUTYLAMINOBUTYLAMINO) - 3 - METHYLQUINOLINE AND ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
22 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 7-CHLORO-4-(4-DI - N - BUTYLAMINOBUTYLAMINO) - 3 - METHYLQUINOLINE AND ACID ADDITION SALTS THEREOF.
References Cited (Backward Citations)
US2233970A
Cited
CH212595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |