Patent US3347776A successfully refreshed from Google Patents.
US3347776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking a mixture of a hydrocarbon and quinone
Assignee: Union Carbide Corp
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Filing: 1963-06-17
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Granted: 1967-10-17
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Charles V Mitchell
- 👤 Irwin C Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:34
CPC Classifications
C; C01; C01B; C01B32/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A PROCESS FOR MAKING CARBON BY COKING A HYDROCARBONACEOUS MATERIAL NORMALLY OF LOW COKING VALUE AND LIQUEFIABLE BELOW COKING TEMPERATURES AND REACTIVE WITH A QUINONE, THE IMPROVEMENT WHICH COMPRISES MIXING A QUINONE WITH SAID HYDROCARBONACEOUS MATERIAL PRIOR TO COKING IN AN AMOUNT SUFFICIENT TO IMPROVE THE COKING VALUE OF SAID HYDROCARBONACEOUS MATERIAL, AND THEN COKING THE MIXTURE.
Claim 2
Dependent Claim
58 words
IN A PROCESS FOR MAKING CARBON BY COKING A HYDROCARBONACEOUS MATERIAL NORMALLY OF LOW COKING VALUE AND LIQUEFIABLE BELOW COKING TEMPERATURES AND REACTIVE WITH A QUINONE, THE IMPROVEMENT WHICH COMPRISES MIXING A QUINONE WITH SAID HYDROCARBONACEOUS MATERIAL PRIOR TO COKING IN AN AMOUNT SUFFICIENT TO IMPROVE THE COKING VALUE OF SAID HYDROCARBONACEOUS MATERIAL, AND THEN COKING THE MIXTURE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |