US3171858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
alpha-ethylamino-o-methylisobutyrophenone
Assignee: Parke Davis and Co LLC
•
Filing: 1963-08-30
•
Granted: 1965-03-02
•
Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Italien Yvon J L
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:23
CPC Classifications
C; C07; C07C; C07C215/00; C07C215/02; C07C215/22; C07C215/28; C07C215/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND CHOSEN FROM THE CLASS CONSISTING OF AETHYLAMINO-O-METHYLISOBUTYROPHENONE OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND CHOSEN FROM THE CLASS CONSISTING OF AETHYLAMINO-O-METHYLISOBUTYROPHENONE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |