US3213084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 16, 17-trisubstituted 1, 3, 5 (10)-estratrienes
Assignee: Wyeth Holdings LLC
•
Filing: 1964-11-18
•
Granted: 1965-10-19
•
Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 Schaub Robert Eugene
- 👤 Weiss Martin Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:22
CPC Classifications
C; C07; C07J; C07J71/00; 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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |