Patent US3060230A successfully refreshed from Google Patents.
US3060230A
Expired / Lapsed
US
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A-nor-steroid derivatives and process of preparing same
Assignee: Shionogi and Co Ltd
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Filing: 1962-03-28
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Granted: 1962-10-23
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Kubota Tokuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:42
CPC Classifications
C; C07; C07J; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS WHICH COMPRISES TREATING A MEMBER SELECTED, FROM THE GROUP CONSISTING OF ANDROSTANES, PREGNANES, CHOLESTANCES AND SPIROSTANES WHEREIN THE A RING IS SUBSTITUTED AS FOLLOWES:
Claim 2
Dependent Claim
26 words
A PROCESS WHICH COMPRISES TREATING A MEMBER SELECTED, FROM THE GROUP CONSISTING OF ANDROSTANES, PREGNANES, CHOLESTANCES AND SPIROSTANES WHEREIN THE A RING IS SUBSTITUTED AS FOLLOWES:
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |