US3200113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-cyano steroids and derivatives thereof
Assignee: STWB Inc
•
Filing: 1963-01-09
•
Granted: 1965-08-10
•
Expires: 1983-01-09
Abstract
No abstract record available.
Inventors
- 👤 Robert G Christiansen
- 👤 William S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:24
CPC Classifications
C; C07; C07J; C07J71/00; C07J1/00; C07J41/00; C07J75/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
A MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US3050518A
Cited
US3099664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |