US2465282A
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Alkali metal-trioxalato ferriate catalyst and method for its preparation
Assignee: Standard Oil Development Co
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Filing: 1946-12-20
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Granted: 1949-03-22
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Expires: 1966-12-20
Abstract
No abstract record available.
Inventors
- 👤 James C Schiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:18
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; C07C1/0445; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/648; B01J31/00; B01J31/02; B01J31/04; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2531/00; C07C2531/02; C07C2531/04; C07C2531/26; C07C2531/28
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) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |