US2692285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Di-sec-alkyl-dialkylammonium salts and processes for preparing the same
Assignee: GD Searle LLC
•
Filing: 1951-05-07
•
Granted: 1954-10-19
•
Expires: 1971-05-07
Abstract
No abstract record available.
Inventors
- 👤 Richard A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:42
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/62; C07C211/63; A; A61; A61K; A61K31/00; A61K31/13; A61K31/14; A61P; A61P25/00; C10; C10M; C10M2215/00; C10M2215/02; C10M2215/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE THERAPEUTICALLY ACCEPTABLE QUATERNARY AMMONIUM SALTS OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
10 words
THE THERAPEUTICALLY ACCEPTABLE QUATERNARY AMMONIUM SALTS OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2554736A
Cited
US2441069A
Cited
US2416265A
Cited
US2483434A
Cited
US2530126A
Cited
US2527798A
Cited
US2551316A
Cited
US2548652A
Cited
US2541211A
Cited
US2534813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |