US2761848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making shaped carbon articles
Assignee: Union Carbide Corp
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Filing: 1952-05-08
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Granted: 1956-09-04
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Expires: 1972-05-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Bushong
- 👤 Arnold A Kellar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/30; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/002; H01J2893/0021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE MANUFACTURE OF SHAPED CARBON ARTICLES WHICH COMPRISES BLENDING INTO A SUBSTANTIALLY HOMOGENEOUS MASS A MIXTURE OF SOLID CARBON PARTICLES AND A PITCH HAVING A MELTING POINT ABOUT ABOUT 140* C., RENDERING THE MIXTURE OF CARBON PARTICLES AND PITCH FLUID WITH APLASTICIZER COMPRISING AT LEAST ONE OF THE MATERIALS IN THE GROUP CONSISTING OF FURFURAL AND FURFURYL ALCOHOL, THE RATIO OF PLASTICIZER TO PITCH BEING BETWEEN ABOUT 1 TO 3 AND 1 TO 4, EXTRUDING THE FLUID MIXTURE TO SHAPE SAID ARTICLE AND HARDENING SAID ARTICLE BY BAKING.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE MANUFACTURE OF SHAPED CARBON ARTICLES WHICH COMPRISES BLENDING INTO A SUBSTANTIALLY HOMOGENEOUS MASS A MIXTURE OF SOLID CARBON PARTICLES AND A PITCH HAVING A MELTING POINT ABOUT ABOUT 140* C., RENDERING THE MIXTURE OF CARBON PARTICLES AND PITCH FLUID WITH APLASTICIZER COMPRISING AT LEAST ONE OF THE MATERIALS IN THE GROUP CONSISTING OF FURFURAL AND FURFURYL ALCOHOL, THE RATIO OF PLASTICIZER TO PITCH BEING BETWEEN ABOUT 1 TO 3 AND 1 TO 4, EXTRUDING THE FLUID MIXTURE TO SHAPE SAID ARTICLE AND HARDENING SAID ARTICLE BY BAKING.
References Cited (Backward Citations)
GB510256A
Cited
US2582764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |