US3759678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reformer catalyst
Assignee: EIDP Inc
•
Filing: 1971-04-08
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Granted: 1973-09-18
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Expires: 1991-04-08
Abstract
Abstract NICKEL CATALYSTS, OFTEN SUPPORTED ON ALUMINA, ARE USED IN PRIMARY AND SECONDARY REFORMERS FOR THE STEAM REFORMING OF HYDROCARBONS. IF SUCH CATALYSTS CONTAIN LESS THAN 30 P.P.M. MAXIMUM SODIUM OR POTASSIUM OR BOTH, THE PROBLEM OF THE FOULING OF WASTE HEAT BOILERS IS ALLEVIATED.
Inventors
- 👤 B Chamberland
- 👤 E Hoag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:39
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/78; B01J23/74; B01J23/755; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129; Y02P20/50; Y02P20/52
Claims Analysis
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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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |