US3075981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-[aromatic-(lower-alkyl)]-4-(aromaticimino)-1, 4-dihydroquinolines and their preparation
Assignee: STWB Inc
•
Filing: 1958-04-03
•
Granted: 1963-01-29
•
Expires: 1978-04-03
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:31
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/06; C07D215/00; C07D215/02; C07D215/16; C07D215/18; C07D215/36; C07D215/38; C07D215/42; C07D215/44; C07D405/00; C07D405/02; C07D405/06; C07D409/00; C07D409/02; C07D409/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF: (A) THE 1- AROMATIC-(LOWER-ALKYL) !-4(AROMATIC - IMINO) - 1,4 - DIHYDROQUINOLINE HAVING THE FORMULA
Claim 2
Dependent Claim
24 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF: (A) THE 1- AROMATIC-(LOWER-ALKYL) !-4(AROMATIC - IMINO) - 1,4 - DIHYDROQUINOLINE HAVING THE FORMULA
References Cited (Backward Citations)
US2554737A
Cited
US2681910A
Cited
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 |