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Patent US3281415A successfully refreshed from Google Patents.
US3281415A
Expired / Lapsed
US
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Steroidal delta16-20 (alpha and beta)-hydroperoxides
Assignee: Pharmacia and Upjohn Co
•
Filing: 1963-08-30
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Granted: 1966-10-25
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 William P Schneider
- 👤 John C Babcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:17
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/56; A61K31/57; A61K31/573; C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS OF THE 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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |