Patent US2531441A successfully refreshed from Google Patents.
US2531441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rearrangement of steroid oximes
Assignee: Akzo Nobel Paints LLC
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Filing: 1947-05-22
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Granted: 1950-11-28
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Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Percy L Julian
- 👤 John W Cole
- 👤 Edwin W Meyer
- 👤 Magnani Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:15
CPC Classifications
C; C07; C07J; C07J41/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
THE PROCESS FOR PRODUCING PRIMARY STEROID AMINES WHICH COMPRISES EFFECTING REARRANGEMENT OF A SULFONIC ACID ESTER OF AN OXIME OF THE FORMULA
Claim 2
Dependent Claim
22 words
THE PROCESS FOR PRODUCING PRIMARY STEROID AMINES WHICH COMPRISES EFFECTING REARRANGEMENT OF A SULFONIC ACID ESTER OF AN OXIME OF THE 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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |