Patent US2026199A successfully refreshed from Google Patents.
Patent US3280157A successfully refreshed from Google Patents.
US3280157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peroxy steroids and methods for their manufacture
Assignee: Merck Sharp & Dohme LLC
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Filing: 1965-10-22
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Granted: 1966-10-18
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Legatt Theodore
- 👤 Elliot L Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF A 10-HYDROPEROXY-A (B)-UNSATURATED-3-HYDROXY13-ALKYL-GONANE, A 10-HYDROPEROXY-4-DEHYDRO-3-HYDROXY13-ALKYL-GONANE AND THE 10-BENZOYL AND 10-LOWER ALKANOYL ESTERS THEREOF, SAID 13-ALKYL GONANE HAVING A CONFIGURATION ABOUT THE 17-POSITION REPRESENTED BY THE FOLLOWING PARTIAL FORMULA:
Claim 2
Dependent Claim
38 words
A COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF A 10-HYDROPEROXY-A (B)-UNSATURATED-3-HYDROXY13-ALKYL-GONANE, A 10-HYDROPEROXY-4-DEHYDRO-3-HYDROXY13-ALKYL-GONANE AND THE 10-BENZOYL AND 10-LOWER ALKANOYL ESTERS THEREOF, SAID 13-ALKYL GONANE HAVING A CONFIGURATION ABOUT THE 17-POSITION REPRESENTED BY THE FOLLOWING PARTIAL FORMULA:
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |