Patent US3198714A successfully refreshed from Google Patents.
US3198714A
Expired / Lapsed
US
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Process for making carbon articles from carbon particles and furane derivatives
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1958-11-28
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Granted: 1965-08-03
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Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Johnson William
- 👤 Watt William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:03
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/64; C; C01; C01B; C01B32/00; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS OF MANUFACTURING A SHAPED CARBON ARTICLE HAVING HIGH DENSITY AND LOW PERMEABILITY COMPRISING THE STEPS OF FORMING A MIXTURE OF CARBON PARTICLES AND UP TO ABOUT 20% BY WEIGHR OF A LIQUID BINDER MATERIAL CONSISTING ESSENTIALLY OF FURFURYL ALCOHOL AND BEING POLYMERIZABLE TO YIELD A THERMOSETTING RESINOUS MATERIAL, AND WHICH GIVES A HIGH YIELD OF DENSE RELATIVELY LOW PERMEABILITY CARBON ON DECOMPOSITION BY HEAT, SHAPING A CHARGE OF THE MIXTURE TO ARTICLE FORM, POLYMERIZING THE BINDER MATERIAL IN SAID SHAPED ARTICLE, AND THEN HEATING SAID SHAPED ARTICLE TO CARBONIZE THE BINDER MATERIAL,
Claim 2
Dependent Claim
94 words
A PROCESS OF MANUFACTURING A SHAPED CARBON ARTICLE HAVING HIGH DENSITY AND LOW PERMEABILITY COMPRISING THE STEPS OF FORMING A MIXTURE OF CARBON PARTICLES AND UP TO ABOUT 20% BY WEIGHR OF A LIQUID BINDER MATERIAL CONSISTING ESSENTIALLY OF FURFURYL ALCOHOL AND BEING POLYMERIZABLE TO YIELD A THERMOSETTING RESINOUS MATERIAL, AND WHICH GIVES A HIGH YIELD OF DENSE RELATIVELY LOW PERMEABILITY CARBON ON DECOMPOSITION BY HEAT, SHAPING A CHARGE OF THE MIXTURE TO ARTICLE FORM, POLYMERIZING THE BINDER MATERIAL IN SAID SHAPED ARTICLE, AND THEN HEATING SAID SHAPED ARTICLE TO CARBONIZE THE BINDER MATERIAL,
References Cited (Backward Citations)
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |