US2527596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon body and method of making
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1948-08-31
•
Granted: 1950-10-31
•
Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick L Shea
- 👤 Leslie H Juel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:39
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/06; H05B7/08; H05B7/085; C; C01; C01B; C01B32/00; C01B32/30; C01B32/354; C01B32/384; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; Y; Y10; Y10S; Y10S264/00; Y10S264/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A HARD, DENSE, CARBON BODY HAVING AN APPARENT DENSITY OF AT LEAST 1.80 AND RESULTING FROM BAKING AT CARBONIZING TEMPERATURES A MIXTURE OF A BINDER AND CARBON SOLIDS, SAID CARBON SOLIDS COMPRISING ABOUT 5 TO ABOUT 65% OF THERMATOMIC CARBON BLACK AND ABOUT 95 TO ABOUT 35% OF COMMINUTED CALCINED COKE, SAID BINDER CONSISTING ESSENTIALLY OF PITCH MELTING IN THE RANGE OF ABOUT 50* TO ABOUT 225*C. AND ABOUT 10 TO ABOUT 45% OF A NITRO SUBSTITUTED AROMATIC COMPOUND MELTING BELOW ABOT 100*C. AND BOILING ABOVE ABOUT 225*C., SAID COMPOUND BEING COMPATIBLE WITH SAID PITCH AND REACTIVE WITH SAID PITCH AT A TEMPERATURE ABOVE ABOUT 200*C.
Claim 2
Dependent Claim
106 words
A HARD, DENSE, CARBON BODY HAVING AN APPARENT DENSITY OF AT LEAST 1.80 AND RESULTING FROM BAKING AT CARBONIZING TEMPERATURES A MIXTURE OF A BINDER AND CARBON SOLIDS, SAID CARBON SOLIDS COMPRISING ABOUT 5 TO ABOUT 65% OF THERMATOMIC CARBON BLACK AND ABOUT 95 TO ABOUT 35% OF COMMINUTED CALCINED COKE, SAID BINDER CONSISTING ESSENTIALLY OF PITCH MELTING IN THE RANGE OF ABOUT 50* TO ABOUT 225*C. AND ABOUT 10 TO ABOUT 45% OF A NITRO SUBSTITUTED AROMATIC COMPOUND MELTING BELOW ABOT 100*C. AND BOILING ABOVE ABOUT 225*C., SAID COMPOUND BEING COMPATIBLE WITH SAID PITCH AND REACTIVE WITH SAID PITCH AT A TEMPERATURE ABOVE ABOUT 200*C.
References Cited (Backward Citations)
US1037901A
Cited
US1215700A
Cited
US1340855A
Cited
US1392267A
Cited
US1654046A
Cited
US1675674A
Cited
US2270181A
Cited
US2270199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |