Patent US3318922A successfully refreshed from Google Patents.
US3318922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
13-substituted alkyl-17-hydroxygona-4-en-3-ones and their 17alpha substitution products
Assignee: Merck and Co Inc
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Filing: 1962-10-01
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Granted: 1967-05-09
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Windholz
- 👤 Arthur A Patchett
- 👤 Fried John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:16
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 13-ALKYL-17A-TRIFLUOROVINYL - 17 - HYDROXYGONA-4-EN-3-ONE AND THE 17B-ALKANOYL ESTERS THEREOF, WHEREIN SAID 13-ALKYL IS A LOWER ALKYL RADICAL CONTAINING AT LEAST 2 CARBON ATOMS.
Claim 2
Dependent Claim
32 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 13-ALKYL-17A-TRIFLUOROVINYL - 17 - HYDROXYGONA-4-EN-3-ONE AND THE 17B-ALKANOYL ESTERS THEREOF, WHEREIN SAID 13-ALKYL IS A LOWER ALKYL RADICAL CONTAINING AT LEAST 2 CARBON ATOMS.
References Cited (Backward Citations)
US2838530A
Cited
US3067214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |