US3212930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous carbon electrode preparation
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-05-29
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Granted: 1965-10-19
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Charles E Thompson
- 👤 Elroy M Gladrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:35
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5105; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C25; C25B; C25B11/00; C25B11/04; C25B11/042; C25B11/043; C25B11/044; H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR THE PREPARATION OF A POROUS CARBON ELECTRODE WHICH COMPRISES THE STEPS OF: (A) HEATING A POROUS CARBON BODY FOR ABOUT 1 TO 10 HOURS IN A CARBON DIOXIDE ATMOSPHERE TO A TEMPERATURE IN THE RANGE OF ABOUT 870* TO 1100*C., (B) COOLING THE POROUS CARBON BODY IN A CARBON DIOXIDE ATMOSPHERE, (C) CONTACTING SAID CARBON BODY WITH MOLECULAR OXYGEN AT A TEMPERATURE IN THE RANGE OF ABOUT 200* TO 500*C. FOR FROM 1 TO 300 MINUTES, AND (D) IMPREGNATING SAID CARBON BODY WITH A CATALYST YIELDING MATERIAL FROM AN AQUEOUS SOLUTION CONTAINING SAID MATERIAL.
Claim 2
Dependent Claim
97 words
A PROCESS FOR THE PREPARATION OF A POROUS CARBON ELECTRODE WHICH COMPRISES THE STEPS OF: (A) HEATING A POROUS CARBON BODY FOR ABOUT 1 TO 10 HOURS IN A CARBON DIOXIDE ATMOSPHERE TO A TEMPERATURE IN THE RANGE OF ABOUT 870* TO 1100*C., (B) COOLING THE POROUS CARBON BODY IN A CARBON DIOXIDE ATMOSPHERE, (C) CONTACTING SAID CARBON BODY WITH MOLECULAR OXYGEN AT A TEMPERATURE IN THE RANGE OF ABOUT 200* TO 500*C. FOR FROM 1 TO 300 MINUTES, AND (D) IMPREGNATING SAID CARBON BODY WITH A CATALYST YIELDING MATERIAL FROM AN AQUEOUS SOLUTION CONTAINING SAID MATERIAL.
References Cited (Backward Citations)
CA506105A
Cited
US2938064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |