US2573608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-fluorenyl n-alkyl beta-haloalkyl amines
Assignee: Parke Davis and Co LLC
•
Filing: 1949-04-11
•
Granted: 1951-10-30
•
Expires: 1969-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jr George Rieveschl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:10
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/01; C07C211/26; C07C211/29; A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; A61K31/137; A61P; A61P25/00; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS ACID ADDITION SALTS, SAID FREE BASE HAVING THE FORMULA,
Claim 2
Dependent Claim
21 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS ACID ADDITION SALTS, SAID FREE BASE 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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |