US2698331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
11alpha, 17alpha-dihydroxyprogesterone and esters thereof
Assignee: Pharmacia and Upjohn Co
•
Filing: 1952-03-19
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Granted: 1954-12-28
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Expires: 1972-03-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Murray
- 👤 Durey H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:37
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 11A,17A-DIHYDROXYPROGESTERONE AND 11 A-ACYLOXY-17A-HYDROXYPROGESTERONE WHEREIN ACYLOXY IS A HYDROCARBONCARBONYLOXY RADICAL CONTAINING LESS THAN NINE CARBON ATOMS.
Claim 2
Dependent Claim
24 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 11A,17A-DIHYDROXYPROGESTERONE AND 11 A-ACYLOXY-17A-HYDROXYPROGESTERONE WHEREIN ACYLOXY IS A HYDROCARBONCARBONYLOXY RADICAL CONTAINING LESS THAN NINE CARBON ATOMS.
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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |