US2709705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
16alpha-hydroxyprogesterone, 16alpha-hydroxydihydroprogesterone and esters thereof
Assignee: Olin Corp
•
Filing: 1951-07-27
•
Granted: 1955-05-31
•
Expires: 1971-07-27
Abstract
No abstract record available.
Inventors
- 👤 Perlman David
- 👤 Fried Josef
- 👤 Elwood O Titus
- 👤 Asger F Langlykke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:42
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A MEMBER OF THE CLASS CONSISTING OF 16A-HYDROXYPROGESTERONE, 4,5-DIHYDRO-16A-HYDROXYPROGESTERONE, AND THE ACETIC ACID ESTERS THEREOF.
Claim 2
Dependent Claim
15 words
A MEMBER OF THE CLASS CONSISTING OF 16A-HYDROXYPROGESTERONE, 4,5-DIHYDRO-16A-HYDROXYPROGESTERONE, AND THE ACETIC ACID ESTERS THEREOF.
References Cited (Backward Citations)
US2184167A
Cited
US2353808A
Cited
US2318641A
Cited
US2304837A
Cited
US2352851A
Cited
US2360447A
Cited
US2383472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |