US3033867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzmorphan derivatives
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1960-12-22
•
Granted: 1962-05-08
•
Expires: 1980-12-22
Abstract
No abstract record available.
Inventors
- 👤 Gordon Maxwell
- 👤 Blaine M Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:48
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/12; C07D221/00; C07D221/02; C07D221/22; C07D221/26; C07D401/14; C07D405/00; C07D405/14; C07D409/00; C07D409/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CHEMICAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS, SAID FREE BASE HAVING THE FORMULA:
Claim 2
Dependent Claim
26 words
A CHEMICAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS, SAID FREE BASE HAVING THE FORMULA:
References Cited (Backward Citations)
US2878253A
Cited
US2924603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |