Patent US2703799A successfully refreshed from Google Patents.
US2703799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9alpha-halo-11-oxo-16alpha, 17alpha-epoxyprogesterones
Assignee: GD Searle LLC
•
Filing: 1954-05-12
•
Granted: 1955-03-08
•
Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
C; C07; C07J; C07J71/00; C07J75/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A 9A-HALO-11-OXO-16A,17A-EPOXYPROGESTERONE OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
6 words
A 9A-HALO-11-OXO-16A,17A-EPOXYPROGESTERONE OF THE STRUCTURAL FORMULA
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) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |