Patent US2916486A successfully refreshed from Google Patents.
US2916486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-fluoro steroids and intermediates therefor
Assignee: Pharmacia and Upjohn Co
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Filing: 1958-06-09
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Granted: 1959-12-08
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Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 John C Babcock
- 👤 Campbell J Allan
- 👤 John A Hogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:43
CPC Classifications
C; C07; C07J; C07J7/00; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
6-BFLUORO-3B,5A,17A- TRIHYDROXYPREGNAN-20-ONE 17 ACYLATE, WHEREIN THE ACYL GROUP IS OF A HYDROCARBON CARBOXYLIC ACID CONTAINING FROM ONE TO TWELVE CARBON ATOMS, INCLUSIVE. 5. 5,6-OXIDE-3B,17A - DIHYDROXYPREGAN-20-ONE 3,17DIACYLATE, WHEREIN THE ACYL GROUP IF OF HYDROCARBON CARBOXYLIC ACID CONTAINING FROM ONE TO TWELVE CARBON ATOMS, INCLUSIVE.
Claim 2
Dependent Claim
44 words
6-BFLUORO-3B,5A,17A- TRIHYDROXYPREGNAN-20-ONE 17 ACYLATE, WHEREIN THE ACYL GROUP IS OF A HYDROCARBON CARBOXYLIC ACID CONTAINING FROM ONE TO TWELVE CARBON ATOMS, INCLUSIVE. 5. 5,6-OXIDE-3B,17A - DIHYDROXYPREGAN-20-ONE 3,17DIACYLATE, WHEREIN THE ACYL GROUP IF OF HYDROCARBON CARBOXYLIC ACID CONTAINING FROM ONE TO TWELVE CARBON ATOMS, INCLUSIVE.
References Cited (Backward Citations)
US2838496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |