US2740798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
11 beta-hydroxy-17-ethynyl testosterone and esters thereof
Assignee: GD Searle LLC
•
Filing: 1953-05-25
•
Granted: 1956-04-03
•
Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Jack W Ralls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:09
CPC Classifications
C; C07; C07J; C07J7/00; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN 11B-HYDROXY STERIOD OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
7 words
AN 11B-HYDROXY STERIOD OF THE STRUCTURAL 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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |