US2848304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing dicobalt octacarbonyl
Assignee: Ajinomoto Co Inc
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Filing: 1956-04-04
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Granted: 1958-08-19
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Yoshida Toichi
- 👤 Iwanaga Ryoji
- 👤 Mori Hisao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:09
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B; B01; B01J; B01J21/00; B01J21/02; B01J27/00; B01J27/24; B01J31/00; B01J31/16; B01J31/20; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A PROCESS FOR PRODUCING DICOBALT OCTACARBONYL BY REACTING COBALT SUBSTANCE IN INERT SOLVENT WITH CARBON MONOXIDE AND HYDROGEN UNDER PRESSURE AND HEATING, A PROCESS FOR PRODUCING DICOBALT OCTACARBONYL COMPRISING PERFORMING THE REACTION IN THE PRESENCE OF A PYRIDINE BASE SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, LUTIDINE, AND PICOLINE AT TEMPERATURE OF ABOUT FROM 100*C. TO ABOUT 200*C. UNDER PRESSURE FROM 50 KG./CM.2 TO 100KG/CM.2.
Claim 2
Dependent Claim
66 words
IN A PROCESS FOR PRODUCING DICOBALT OCTACARBONYL BY REACTING COBALT SUBSTANCE IN INERT SOLVENT WITH CARBON MONOXIDE AND HYDROGEN UNDER PRESSURE AND HEATING, A PROCESS FOR PRODUCING DICOBALT OCTACARBONYL COMPRISING PERFORMING THE REACTION IN THE PRESENCE OF A PYRIDINE BASE SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, LUTIDINE, AND PICOLINE AT TEMPERATURE OF ABOUT FROM 100*C. TO ABOUT 200*C. UNDER PRESSURE FROM 50 KG./CM.2 TO 100KG/CM.2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |