US3075984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-[(lower-aromatic)-(lower-alkyl)]-4-[(lower-aromatic)-(lower-alkyl) imino]-1, 4-dihydroquinolines and their preparation
Assignee: STWB Inc
•
Filing: 1958-05-09
•
Granted: 1963-01-29
•
Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:09
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/18; C07D215/20; C07D215/24; C07D215/26; C07D215/36; C07D215/38; C07D215/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF: (A) THE 1 - (LOWER - AROMATIC) - (LOWERALKYL)! - 4 - (LOWER - AROMATIC) - (LOWER - ALKYL) IMINO! 1,4-DIHYDROPOQUINOLINE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
35 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF: (A) THE 1 - (LOWER - AROMATIC) - (LOWERALKYL)! - 4 - (LOWER - AROMATIC) - (LOWER - ALKYL) IMINO! 1,4-DIHYDROPOQUINOLINE HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |