US2069096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of ovarian follicular hormones and process of obtaining same
Assignee: PRESIDENT AND BOARD
•
Filing: 1933-08-09
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Granted: 1937-01-26
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Expires: 1953-08-09
Abstract
No abstract record available.
Inventors
- 👤 Donald W Maccorquodale
- 👤 Sidney A Thayer
- 👤 Edward A Doisy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:01
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 0
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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) | 1940-01-26 | 1940-07-27 | 1941-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-26 | 1944-07-27 | 1945-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-26 | 1948-07-27 | 1949-01-26 | $7700.00 | Window Closed / Lapsed |