Patent US2732333A successfully refreshed from Google Patents.
US2732333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphite containing metallurgical
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:22
CPC Classifications
C; C10; C10B; C10B57/00; C10B57/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
THE PROCESS OF MANUFACTURING METALLURGICAL COKE WHICH COMPRISES PULVERIZING CAKING COAL TO PASS THROUGH A 3/8 INCH MESH SCREEN, ADDING NATURAL, AMORPHOUS GRAPHITE TO THE PULVERIZED COAL IN THE RATIO OF APPROXIMATELY 4-20 PARTS BY WEIGHT GRAPHITE TO APPROXIMATELY 100 PARTS COAL, THOROUGHLY BLENDING THE MIXTURE OF GRAPHITE AND COAL INTO A SUBSTANTIALLY HOMOGENEOUS MASS, THEN COKING THE MASS IN A BEEHIVE OVEN FOR 72-96 HOURS.
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |