US3269910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3(beta-hydroxyethyl)-iminosteroids of the pregnane series and methods of admin-istration
Assignee: Merck KGaA
•
Filing: 1963-07-29
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Granted: 1966-08-30
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Klaus Dr Irmscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:30
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0005; C07J53/00; C07J53/002; C07J53/004; C07J53/005; C07J75/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
10 words
3-B-HYDROXYETHYLIMINO STERIODS OF THE PREGNANE SERIES HAVING THE FORMULA I
Claim 2
Dependent Claim
10 words
3-B-HYDROXYETHYLIMINO STERIODS OF THE PREGNANE SERIES HAVING THE FORMULA I
Claim 3
Dependent Claim
30 words
A METHOD OF EFFECTING GESTAGENIC ACTIVITY IN MAMMALS WHICH COMPRISES ADMINISTERING TO SAID MAMMALS IN EFFECTIVE AMOUNT OF A COMPOUND OF FORMULA I AS SHOWN AND DEFINED IN CLAIM 1.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |