Patent US3381002A successfully refreshed from Google Patents.
US3381002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
16beta-alkylthio-17-oxo-steroids
Assignee: Shionogi and Co Ltd
•
Filing: 1963-03-01
•
Granted: 1968-04-30
•
Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Komeno Taichiro
- 👤 Tokutake Norio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:14
CPC Classifications
C; C07; C07J; C07J31/00; A; A61; A61K; A61K31/00; A61K31/56; A61K31/565; A61K31/566; A61K31/568; A61K31/66; A61K31/683; A61K31/685; C07J75/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
PROCESS WHICH COMPRISES REACTING 16-HALOGENO-17OXO-STEROID OF THE FORMULA
Claim 2
Dependent Claim
8 words
PROCESS WHICH COMPRISES REACTING 16-HALOGENO-17OXO-STEROID OF THE FORMULA
Claim 3
Dependent Claim
5 words
A STEROID OF THE FORMULA:
Claim 4
Dependent Claim
5 words
A STEROID OF THE FORMULA:
References Cited (Backward Citations)
US2837464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |