Patent US2656309A successfully refreshed from Google Patents.
US2656309A
Expired / Lapsed
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Process of coking a mixture of a carbonaceous material and a high boiling bituminous pitch
Assignee: Individual
•
Filing: 1951-02-05
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Granted: 1953-10-20
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Expires: 1971-02-05
Abstract
No abstract record available.
Inventors
- 👤 Walter T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:21
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR PRODUCING COKE, WHICH COMPRISES MIXING DRY, NON-COKING, CARBONACEOUS MATERIAL WITH BITUMINOUS MATERIAL COMPOSED ESSENTIALLY OF UNSATURATED, POLYNUCLEAR HYDROCARBONS HAVING A BOILING POINT IN EXCESS OF 300* C., AND HEATING THE MIXTURE IN A HORIZONTAL, BOTTOM-HEATED RETORT TO A TEMPERATURE TO CAUSES POLYMERIZATION OF THE HYDROCARBONS AND FORMATION OF GIANT POLYMERS HAVING SUBSTANTIAL BONDING CHARACTERISTICS.
Claim 2
Dependent Claim
57 words
A PROCESS FOR PRODUCING COKE, WHICH COMPRISES MIXING DRY, NON-COKING, CARBONACEOUS MATERIAL WITH BITUMINOUS MATERIAL COMPOSED ESSENTIALLY OF UNSATURATED, POLYNUCLEAR HYDROCARBONS HAVING A BOILING POINT IN EXCESS OF 300* C., AND HEATING THE MIXTURE IN A HORIZONTAL, BOTTOM-HEATED RETORT TO A TEMPERATURE TO CAUSES POLYMERIZATION OF THE HYDROCARBONS AND FORMATION OF GIANT POLYMERS HAVING SUBSTANTIAL BONDING CHARACTERISTICS.
References Cited (Backward Citations)
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FR884956A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |