Patent US230924A successfully refreshed from Google Patents.
Patent US2546658A successfully refreshed from Google Patents.
US2546658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-chloro-4-[5-(n-ethyl-n-2-hydroxyethylamino)-2-pentyl] aminoquinoline, its acid addition salts, and method of preparation
Assignee: STWB Inc
•
Filing: 1949-07-23
•
Granted: 1951-03-27
•
Expires: 1969-07-23
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:36
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D215/42; C07D215/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 7-CHLORO-4-(5-(N-ETHYL-N-2-HYDROXYETHYLAMINO) -2-PENTYL)AMINOQUINOLINE; AND ACIDADDITION SALTS THEREOF.
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 7-CHLORO-4-(5-(N-ETHYL-N-2-HYDROXYETHYLAMINO) -2-PENTYL)AMINOQUINOLINE; AND ACIDADDITION SALTS THEREOF.
References Cited (Backward Citations)
US2233970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |