US2546762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylamino acetophenones and preparation thereof
Assignee: Parke Davis and Co LLC
•
Filing: 1948-08-24
•
Granted: 1951-03-27
•
Expires: 1968-08-24
Abstract
No abstract record available.
Inventors
- 👤 Loren M Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:21
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA,
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA,
References Cited (Backward Citations)
US2128255A
Cited
US2245282A
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 |