Patent US3109850A successfully refreshed from Google Patents.
US3109850A
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Delta5-androsteno-3, 11, 17-triol and the esters thereof
Assignee: BASF Corp
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Filing: 1957-11-25
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Granted: 1963-11-05
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Wettstein Albert
- 👤 Meystre Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:29
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/896; Y10S435/911; Y10S435/913; Y10S435/917; Y10S435/931; Y10S435/933; Y10S435/936; Y10S435/939
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2520656A
Cited
US2656364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |