US3082255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isobutyrophenone compounds and the production thereof
Assignee: Parke Davis and Co LLC
•
Filing: 1958-12-19
•
Granted: 1963-03-19
•
Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Calvin L Stevens
- 👤 Robert W Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:54
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/04; C07; C07D; C07D303/00; C07D303/02; C07D303/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOUND OF THE CLASS CONSISTING OF A-AMINOISOBUTYROPHENONE COMPOUNDS AND SALTS THEREOF WITH PHARMACEUTICALLY-ACCEPTABLE ACIDS, SAID A-AMINOISOBUTYROPHENONE COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
21 words
A COMPOUND OF THE CLASS CONSISTING OF A-AMINOISOBUTYROPHENONE COMPOUNDS AND SALTS THEREOF WITH PHARMACEUTICALLY-ACCEPTABLE ACIDS, SAID A-AMINOISOBUTYROPHENONE COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US1767423A
Cited
US2816059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |