US2502264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinoline derivatives having antimalarial properties
Assignee: United States, WAR, Secretary of
•
Filing: 1946-06-25
•
Granted: 1950-03-28
•
Expires: 1966-06-25
Abstract
No abstract record available.
Inventors
- 👤 Robert E Lutz
- 👤 Joseph B Koepfli
- 👤 Edwin R Buchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/50; C07D215/52; C07D215/12; C07D215/14; C07D215/18; C07D215/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A NEW SERIES OF CARBINOLS HAVING THE CHARACTERISTIC STRUCTURAL FORMULA:
Claim 2
Dependent Claim
10 words
A NEW SERIES OF CARBINOLS HAVING THE CHARACTERISTIC STRUCTURAL FORMULA:
References Cited (Backward Citations)
US1434306A
Cited
US1891980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |