US2746992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialkylaminoalkyl-diphenyl-acetanilides
Assignee: F Hoffmann La Roche AG
•
Filing: 1954-04-09
•
Granted: 1956-05-22
•
Expires: 1974-04-09
Abstract
No abstract record available.
Inventors
- 👤 Goldberg Moses Wolf
- 👤 Teitel Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:54
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF THE FREE BASES HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF THE FREE BASES HAVING THE FORMULA
References Cited (Backward Citations)
US2009144A
Cited
US2629736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |