Patent US3001237A successfully refreshed from Google Patents.
US3001237A
Expired / Lapsed
US
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Method of making carbon articles
Assignee: JAMES D HEDGES
•
Filing: 1956-12-31
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Granted: 1961-09-26
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Balaguer Rodolfo Rodriguez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:43
CPC Classifications
H; H01; H01M; H01M4/00; C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; H01B; H01B1/00; H01B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS FOR MAKING A FORMED CARBON ARTICLE FROM COMMINUTED PARTICLES OF CARBONACEOUS RAW MATERIAL INCLUDING A FIRST CARBONACEOUS MATERIAL WHICH IS FUSIBLE AND WHICH DECOMPOSES TO FORM AN APPRECIABLE AMOUNT OF FIXED CARBON AND CONTAINS APPRECIABLE VOLATILE COMBUSTIBLE MATTER AND A SECOND CARBONACEOUS MATERIAL HAVING A LOW VOLATILE MATTER CONTENT, COMPRISING THE STEPS OF PLACING THE COMMINUTED PARTICLES OF CARBONACEOUS RAW MATERIAL IN A MOLD, SUBJECTING THE MATERIAL WITHIN THE MOLD TO A HIGH MECHANICAL PRESSURE NOT LESS THAN ABOUT 1000 P.S.I. TO COMPRESS THE SAME, AND RAPIDLY HEATING THE MATERIAL IN THE MOLD WHILE MAINTAINING SAID PRESSURE THEREON BY PASSING AN ELECTRICAL CURRENT THROUGH SAID COMPRESSED MATERIAL SO THAT THE HEAT IS GENERATED WITHIN THE RAW MATERIAL ITSELF, SAID HEATING STEP AND SAID PRESSURE MAINTENANCE BEING CONTINUED UNTIL SAID FUSIBLE CARBONACEOUS MATERIAL IS CARBONIZED.
Claim 2
Dependent Claim
136 words
A PROCESS FOR MAKING A FORMED CARBON ARTICLE FROM COMMINUTED PARTICLES OF CARBONACEOUS RAW MATERIAL INCLUDING A FIRST CARBONACEOUS MATERIAL WHICH IS FUSIBLE AND WHICH DECOMPOSES TO FORM AN APPRECIABLE AMOUNT OF FIXED CARBON AND CONTAINS APPRECIABLE VOLATILE COMBUSTIBLE MATTER AND A SECOND CARBONACEOUS MATERIAL HAVING A LOW VOLATILE MATTER CONTENT, COMPRISING THE STEPS OF PLACING THE COMMINUTED PARTICLES OF CARBONACEOUS RAW MATERIAL IN A MOLD, SUBJECTING THE MATERIAL WITHIN THE MOLD TO A HIGH MECHANICAL PRESSURE NOT LESS THAN ABOUT 1000 P.S.I. TO COMPRESS THE SAME, AND RAPIDLY HEATING THE MATERIAL IN THE MOLD WHILE MAINTAINING SAID PRESSURE THEREON BY PASSING AN ELECTRICAL CURRENT THROUGH SAID COMPRESSED MATERIAL SO THAT THE HEAT IS GENERATED WITHIN THE RAW MATERIAL ITSELF, SAID HEATING STEP AND SAID PRESSURE MAINTENANCE BEING CONTINUED UNTIL SAID FUSIBLE CARBONACEOUS MATERIAL IS CARBONIZED.
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |