Patent US2705233A successfully refreshed from Google Patents.
US2705233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
16, 17-oxido-pregnane-3alpha-ol-3, 20-dione
Assignee: Akzo Nobel Paints LLC
•
Filing: 1950-05-29
•
Granted: 1955-03-29
•
Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 Percy L Julian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:44
CPC Classifications
C; C07; C07J; C07J71/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
16,17-OXIDO-PREGNANE-3A-OL-11,20-DIONE.
Claim 2
Dependent Claim
1 words
16,17-OXIDO-PREGNANE-3A-OL-11,20-DIONE.
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) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |