US3326796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of electrode grade petroleum coke
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1964-06-22
•
Granted: 1967-06-20
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Muller N William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:32
CPC Classifications
C; C10; C10B; C10B55/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR PRODUCING A PREMIUM GRADE COKE HAVING A NEEDLE-LIKE STRUCTURE FROM A RESINOUS BY-PRODUCT HAVING A SOFTENING POINT OF FROM 40* TO 65* CENTIGRADE DERIVED FROM THE MANUFACTURE OF UNSATURATED HYDROCARBONS BY THE CRACKING OF PETROLEUM NAPHTHA AND CHARACTERIZED BY HIGH AROMATICITY AND THE SUBSTANTIAL ABSENCE OF READILY COKABLE MATERIAL, WHICH CONSISTS ESSENTIALLY OF HEATING THE RESINOUS BY-PRODUCT UNIFORMLY TO A COKING TEMPERATURE AND COKING IT UNDER CONDITIONS OF THERMAL HOMOGENEITY AND WITHOUT AGITATION EXCEPT FOR THE NATURAL MOVEMENT OF VAPORS EVOLVED DURING COKING.
Claim 2
Dependent Claim
86 words
A PROCESS FOR PRODUCING A PREMIUM GRADE COKE HAVING A NEEDLE-LIKE STRUCTURE FROM A RESINOUS BY-PRODUCT HAVING A SOFTENING POINT OF FROM 40* TO 65* CENTIGRADE DERIVED FROM THE MANUFACTURE OF UNSATURATED HYDROCARBONS BY THE CRACKING OF PETROLEUM NAPHTHA AND CHARACTERIZED BY HIGH AROMATICITY AND THE SUBSTANTIAL ABSENCE OF READILY COKABLE MATERIAL, WHICH CONSISTS ESSENTIALLY OF HEATING THE RESINOUS BY-PRODUCT UNIFORMLY TO A COKING TEMPERATURE AND COKING IT UNDER CONDITIONS OF THERMAL HOMOGENEITY AND WITHOUT AGITATION EXCEPT FOR THE NATURAL MOVEMENT OF VAPORS EVOLVED DURING COKING.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |