US2892801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts
Assignee: General Electric Co
•
Filing: 1955-12-13
•
Granted: 1959-06-30
•
Expires: 1975-12-13
Abstract
No abstract record available.
Inventors
- 👤 Donald E Sargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:42
CPC Classifications
B; B01; B01J; B01J25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A FINELY DIVIDED POROUS NICKEL CATALYST COMPRISING COPPER-PLATED NICKEL IN POROUS, ACTIVATED FORM, SAID COPPER BEING PRESENT IN AN AMOUNT EQUAL TO FROM 0.5 TO 75 PERCENT IN AN AMOUNT OF THE CATALYST, AND THE REMAINDER BEING SUBSTANTIALLY NICKEL, SAID CATALYST HAVING BEEN PREPARED BY TREATING RANEY NICKEL WITH AN AQUEOUS COPPER SALT SOLUTION.
Claim 2
Dependent Claim
54 words
A FINELY DIVIDED POROUS NICKEL CATALYST COMPRISING COPPER-PLATED NICKEL IN POROUS, ACTIVATED FORM, SAID COPPER BEING PRESENT IN AN AMOUNT EQUAL TO FROM 0.5 TO 75 PERCENT IN AN AMOUNT OF THE CATALYST, AND THE REMAINDER BEING SUBSTANTIALLY NICKEL, SAID CATALYST HAVING BEEN PREPARED BY TREATING RANEY NICKEL WITH AN AQUEOUS COPPER SALT SOLUTION.
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) | 1962-06-29 | 1962-12-29 | 1963-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-29 | 1966-12-29 | 1967-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-29 | 1970-12-29 | 1971-06-30 | $7700.00 | Window Closed / Lapsed |