Patent US4321038A successfully refreshed from Google Patents.
US3147092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas reforming method and catalyst and process for preparing the same
Assignee: Wyeth Holdings LLC
•
Filing: 1961-10-26
•
Granted: 1964-09-01
•
Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Baun Robert M De
- 👤 Malden W Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:14
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/384; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A PROCESS FOR REFORMING LOWER HYDROCARBONS WITH STEAM AT TEMPERATURES OF FROM 400 TO 1000*C. WHICH COMPRISES CONTACTING SAID HYDROCARBONS AND STEAM WITH A CATALYST COMPRISING FROM BETWEEN 15 AND 30% OF NICKEL OXIDE, FROM BETWEEN .5 AND 2.5% OF MANGANOUS OXIDE AND THE BALANCE BEING ESSENTIALLY A CEMENT BINDING AGENT, SAID MANGANOUS OXIDE BEING ADDED TO THE CATALYST BY IMPREGNATING A CALCINED FORMED BASE COMPRISING SAID NICKEL OXIDE AND CEMENT BINDING AGENT WITH A MANGANESE SALT AND THEREAFTER CALCINING SAID IMPREGNATED CALCINED BASE.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |