Patent US1955992A successfully refreshed from Google Patents.
Patent US3189604A successfully refreshed from Google Patents.
US3189604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-fluoromethyl steroid compounds and process
Assignee: Pharmacia and Upjohn Co
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Filing: 1960-06-16
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Granted: 1965-06-15
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Expires: 1980-06-16
Abstract
No abstract record available.
Inventors
- 👤 Iii Philip F Beal
- 👤 John E Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:37
CPC Classifications
C; C07; C07J; C07J71/00; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
15 words
6A - FLUOROMETHYL - 11B,16A,17A,21 - TETRAHYDROXY - 4PREGNENE-3,20-DIONE 16A, 17A-ACETONIDE REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2888457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |