US2570286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary-amino-2-aryl-2-(4-quinolyl) alkane-nitriles and their preparation
Assignee: STWB Inc
•
Filing: 1948-05-28
•
Granted: 1951-10-09
•
Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
- 👤 Royal A Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:21
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/06; C07D215/00; C07D215/02; C07D215/12; C07D215/16; C07D215/18; C07D215/20; C07D215/24; C07D215/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC COMPOUND HAVING THE FORMULA
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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |