Patent US2659668A successfully refreshed from Google Patents.
US2659668A
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US
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Method for gasifying coals
Assignee: Phillips Petroleum Co
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Filing: 1949-09-12
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Granted: 1953-11-17
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Expires: 1969-09-12
Abstract
No abstract record available.
Inventors
- 👤 Bertrand J Mayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:28
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/06; C10J3/12; C10J3/46; C10J3/48; C10J3/482; C10J3/72; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/0976; C10J2300/0983; C10J2300/0993; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/18; C10J2300/1807; C10J2300/1861; C10J2300/1884
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN IMPROVED METHOD FOR GASIFYING ORGANIC MATERIAL WHICH COMPRISES THE STEPS OF HEATING SOLID HEAT EXCHANGE MATERIAL IN A HEATING ZONE; GRAVITATING SAID HEATED SOLID HEAT EXCHANGE MATERIAL INTO A COKING ZONE; CONTINUOUSLY TUMBLING SAID HEATED SOLID HEAT EXCHANGE MATERIAL IN SAID COKING ZONE WHILE ADDING ORGANIC MATERIAL THERETO; DECOMPOSING SAID ORGANIC MATERIAL TO COKE ON THE SURFACE OF SAID SOLID HEAT EXCHANGE MATERIAL; GRAVITATING SAID COKE-COVERED SOLID HEAT EXCHANGE MATERIAL INTO A GASIFICATION ZONE; PASSING STEAM AND OXYGEN INTO CONTACT WITH SAID COKE-COVERED SOLID HEAT EXCHANGE MATERIAL AND GASIFYING ZONE; COKED ORGANIC MATERIAL; RECOVERING RESULTING GASEOUS MATERIALS FROM SAID GASIFICATION ZONE; REMOVING SAID SOLID HEAT EXCHANGE MATERIAL FROM SAID GASIFICATION ZONE; AND RETURNING SAID SOLID HEAT EXCHANGE MATERIAL TO SAID HEATING ZONE.
Claim 2
Dependent Claim
123 words
AN IMPROVED METHOD FOR GASIFYING ORGANIC MATERIAL WHICH COMPRISES THE STEPS OF HEATING SOLID HEAT EXCHANGE MATERIAL IN A HEATING ZONE; GRAVITATING SAID HEATED SOLID HEAT EXCHANGE MATERIAL INTO A COKING ZONE; CONTINUOUSLY TUMBLING SAID HEATED SOLID HEAT EXCHANGE MATERIAL IN SAID COKING ZONE WHILE ADDING ORGANIC MATERIAL THERETO; DECOMPOSING SAID ORGANIC MATERIAL TO COKE ON THE SURFACE OF SAID SOLID HEAT EXCHANGE MATERIAL; GRAVITATING SAID COKE-COVERED SOLID HEAT EXCHANGE MATERIAL INTO A GASIFICATION ZONE; PASSING STEAM AND OXYGEN INTO CONTACT WITH SAID COKE-COVERED SOLID HEAT EXCHANGE MATERIAL AND GASIFYING ZONE; COKED ORGANIC MATERIAL; RECOVERING RESULTING GASEOUS MATERIALS FROM SAID GASIFICATION ZONE; REMOVING SAID SOLID HEAT EXCHANGE MATERIAL FROM SAID GASIFICATION ZONE; AND RETURNING SAID SOLID HEAT EXCHANGE MATERIAL TO SAID HEATING ZONE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |