Patent US2899395A successfully refreshed from Google Patents.
US2899395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jillicu
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
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Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:54
CPC Classifications
C; C07; C07C; C07C27/00; C07C27/20; C07C27/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
PROCESS FOR THE REGENERATION OF AQUEOUS CATAYLST SOLUTIONS CONTAINING COBALT SALTS, THE COBALT BEING PRESENT IN SAID SOLUTIONS IN AMOUNTS OF 2-20 G./L WHICH CATALYST SOLUTION HAVE BEEN USED FOR THE CATALYST ADDITION OF WATER GAS TO UNSATURATED CARBON COMPOUNDS IN THE PRESENCE OF IRON, WHICH COMPRISES ADDING TO THE SPENT CATALYST SOLUTION WHICH IN ITS SPENT CONDITION CONTAINS 2-20 G./L OF IRON IN THE FORM OF ITS SULFATE AT 0-70*C. A QUANTITY OF COBALT CARBONATE EQUIVALENT TO THE LOSS IN COBALT AND STIRRING THE SOLUTION WHILE BLOWING IN AIR TO PRODUCE IRON CARBONATE AND COBALT SULFATE.
Claim 2
Dependent Claim
97 words
PROCESS FOR THE REGENERATION OF AQUEOUS CATAYLST SOLUTIONS CONTAINING COBALT SALTS, THE COBALT BEING PRESENT IN SAID SOLUTIONS IN AMOUNTS OF 2-20 G./L WHICH CATALYST SOLUTION HAVE BEEN USED FOR THE CATALYST ADDITION OF WATER GAS TO UNSATURATED CARBON COMPOUNDS IN THE PRESENCE OF IRON, WHICH COMPRISES ADDING TO THE SPENT CATALYST SOLUTION WHICH IN ITS SPENT CONDITION CONTAINS 2-20 G./L OF IRON IN THE FORM OF ITS SULFATE AT 0-70*C. A QUANTITY OF COBALT CARBONATE EQUIVALENT TO THE LOSS IN COBALT AND STIRRING THE SOLUTION WHILE BLOWING IN AIR TO PRODUCE IRON CARBONATE AND COBALT SULFATE.
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) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |