US2620341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n-dialkyl-quinoline-4-carboxamidines
Assignee: SmithKline Beecham Corp
•
Filing: 1949-03-24
•
Granted: 1952-12-02
•
Expires: 1969-03-24
Abstract
No abstract record available.
Inventors
- 👤 Baltzly Richard
- 👤 Lorz Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:13
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE N,N-DISUBSTITUTED-QUINOLINE-4CARBOXYAMIDINES OF THE TYPE REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE N,N-DISUBSTITUTED-QUINOLINE-4CARBOXYAMIDINES OF THE TYPE REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
US2049582A
Cited
US2450386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |