US2996524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17 alpha lower alkyl-2-androsten-17 beta-ol
Assignee: Lasdon Foundation Inc
•
Filing: 1961-03-20
•
Granted: 1961-08-15
•
Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Max N Huffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:55
CPC Classifications
C; C07; C07J; C07J1/00; B; B60; B60H; B60H1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A STEROID OF THE FORMULA
Claim 2
Dependent Claim
5 words
A STEROID OF THE FORMULA
References Cited (Backward Citations)
US2806030A
Cited
US2838530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |