Patent US3520093A successfully refreshed from Google Patents.
Patent US1775154A successfully refreshed from Google Patents.
Patent US3201391A successfully refreshed from Google Patents.
US3201391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6alpha, 9alpha, 11beta-trichloro and 6alpha-fluoro-9alpha, 11beta-dichloro pregnenes
Assignee: Roche Palo Alto LLC
•
Filing: 1960-02-18
•
Granted: 1965-08-17
•
Expires: 1980-02-18
Abstract
No abstract record available.
Inventors
- 👤 Bowers Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; C; C07; C07J; C07J5/00; C07J71/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
4 words
THE 16,17-ACETONIDE OF 6A,9A,11B-TRICHLORO-$1,4-PREGNADIENE-16A,17A,21-TRIOL-3,20-DIONE.
Claim 4
Dependent Claim
4 words
THE 16,17-ACETONIDE OF 6A,9A,11B-TRICHLORO-$1,4-PREGNADIENE-16A,17A,21-TRIOL-3,20-DIONE.
References Cited (Backward Citations)
US2916486A
Cited
US2894963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |