US3178461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of 10-acyloxy-19-nor-steroids
Assignee: BASF Corp
•
Filing: 1963-05-07
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Granted: 1965-04-13
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jeger Oskar
- 👤 Schaffner Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
C; C07; C07J; C07J7/00; C07J1/00; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
PROCESS FOR THE MANUFACTURE OF 10B-ACYLOXY-19-NORSTEROIDS, WHEREIN A $4-3-OXO-19-HYDROXYSTEROID IS TREATED WITH A HEVY-METAL ACYLATE HAVING AN OXIDIZING ACTION. 17. $4:6-3:17-DIOXO-10B-ACETOXY-19-NORANDROSTANE.
Claim 2
Dependent Claim
21 words
PROCESS FOR THE MANUFACTURE OF 10B-ACYLOXY-19-NORSTEROIDS, WHEREIN A $4-3-OXO-19-HYDROXYSTEROID IS TREATED WITH A HEVY-METAL ACYLATE HAVING AN OXIDIZING ACTION. 17. $4:6-3:17-DIOXO-10B-ACETOXY-19-NORANDROSTANE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |