US2979390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for carrying out endothermic reactions
Assignee: Hydrocarbon Research Inc
•
Filing: 1956-11-19
•
Granted: 1961-04-11
•
Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Paul W Garbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:23
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; C; C10; C10J; C10J3/00; C10J3/46; C10J3/463; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN AN ENDOTHERMIC PROCESS OF PRODUCING A COMBUSTIBLE GAS FROM A SOLID CARBONACEOUS MATERIAL CONTAINING A FUSIBLE ASH, WHEREIN SAID CARBONACEOUS MATERIAL IN COMMINUTED FORM IS TREATED WHILE UNDERGOING FLUIDIZATION IN A CONVERSION ZONE TO EFFECT THE DESIRED CONVERSION AT A HIGH-TEMPERATURE BELOW THE FUSION TEMPERATURE OF SAID ASH, THE IMPROVEMENT IN SUPPLYING HEAT TO SAID ENDOTHERMIC PROCESS AND EFFECTING SAID CONVERSION AT SAID HIGH
Claim 2
Dependent Claim
65 words
IN AN ENDOTHERMIC PROCESS OF PRODUCING A COMBUSTIBLE GAS FROM A SOLID CARBONACEOUS MATERIAL CONTAINING A FUSIBLE ASH, WHEREIN SAID CARBONACEOUS MATERIAL IN COMMINUTED FORM IS TREATED WHILE UNDERGOING FLUIDIZATION IN A CONVERSION ZONE TO EFFECT THE DESIRED CONVERSION AT A HIGH-TEMPERATURE BELOW THE FUSION TEMPERATURE OF SAID ASH, THE IMPROVEMENT IN SUPPLYING HEAT TO SAID ENDOTHERMIC PROCESS AND EFFECTING SAID CONVERSION AT SAID HIGH
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |