US3268385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon electrodes or neutronic reactor core bars
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1961-02-09
•
Granted: 1966-08-23
•
Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Leslie H Juel
- 👤 Bruce L Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:59
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522; B; B30; B30B; B30B11/00; B30B11/22; B30B11/221; C01; C01B; C01B32/00; C04B35/528; C04B35/532; G; G21; G21C; G21C5/00; G21C5/12; G21C5/126; C04B2235/00; C04B2235/60; C04B2235/602; C04B2235/6021; C04B2235/70; C04B2235/74; C04B2235/78; C04B2235/787; C04B2235/96; C04B2235/9607; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN EXTRUDE GREEN, RECTANGULAR CROSS-SECTIONED CARBONIC BODY FORMED FROM A MIXTURE OF BINDER AND CARBONACEOUS PARTICLES IN SUBSTANTIALLY PLATELET FORM, WHEREIN SAID PLATELETS IN THEIR EXTRUDED CONDITION COMPRISE LAMELLAE DISPOSED IN A PLURALITY OF SUPERIMPOSED PLANES, A HIGH PERCENTAGE OF WHICH SAID PLANES BEING SUBSTANTIALLY MUTUALLY PARALLEL, AND WHEREIN SAID GREEN CARBON BODY, WHEN BAKED AND GRAPHITIZED, IS CHARACTERIZED BY HAVING A COEFFICIENT OF THERMAL EXPANSION IN THE PLANE PERPENDICULAR TO THE PLANES OF THE CRYSTALLITES OF THE X DIRECTION, AT LEAST TWICE AS GREAT AS IT IS IN EACH OF THE PLANES MUTUALLY PERPENDICULAR TO THE X PLANE AND TO EACH OTHER, OR IN THE Y AND Z DIRECTIONS.
Claim 2
Dependent Claim
110 words
AN EXTRUDE GREEN, RECTANGULAR CROSS-SECTIONED CARBONIC BODY FORMED FROM A MIXTURE OF BINDER AND CARBONACEOUS PARTICLES IN SUBSTANTIALLY PLATELET FORM, WHEREIN SAID PLATELETS IN THEIR EXTRUDED CONDITION COMPRISE LAMELLAE DISPOSED IN A PLURALITY OF SUPERIMPOSED PLANES, A HIGH PERCENTAGE OF WHICH SAID PLANES BEING SUBSTANTIALLY MUTUALLY PARALLEL, AND WHEREIN SAID GREEN CARBON BODY, WHEN BAKED AND GRAPHITIZED, IS CHARACTERIZED BY HAVING A COEFFICIENT OF THERMAL EXPANSION IN THE PLANE PERPENDICULAR TO THE PLANES OF THE CRYSTALLITES OF THE X DIRECTION, AT LEAST TWICE AS GREAT AS IT IS IN EACH OF THE PLANES MUTUALLY PERPENDICULAR TO THE X PLANE AND TO EACH OTHER, OR IN THE Y AND Z DIRECTIONS.
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |