US2910411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of gases rich in hydrogen
Assignee: Gulf Research and Development Co
•
Filing: 1955-05-31
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Granted: 1959-10-27
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 William C Offutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/08; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE PREPARATION OF GASES HAVING A CONCENTRATION ABOVE ABOUT 70% OF HYDROGEN CONSISTING ESSENTIALLY OF PREPARING A GREEN PETROLEUM COKE, EXTERNALLY HEATING THE GREEN COKE IN THE ABSENCE OF UNCOKED CARBONACEOUS MATERIAL AND GASEOUS PRODUCTS OF COMBUSTION TO A TEMPERATURE IN THE RANGE OF ABOUT 1200* TO 2000*A F., MAINTAINING THE COKE AT 1200* TO 2000*F. FOR A PERIOD TO COMPLETE THE CALCINATION, AND COLLECTING THE GASES HAVING THE DESIRED HIGH CONCENTRATION OF HYDROGEN LIBERATED DURING THE HEATING AND CALCINATION SEPARATELY FROM THE GASES LIBERATED DURING THE PREPARATION OF THE GREEN COKE.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE PREPARATION OF GASES HAVING A CONCENTRATION ABOVE ABOUT 70% OF HYDROGEN CONSISTING ESSENTIALLY OF PREPARING A GREEN PETROLEUM COKE, EXTERNALLY HEATING THE GREEN COKE IN THE ABSENCE OF UNCOKED CARBONACEOUS MATERIAL AND GASEOUS PRODUCTS OF COMBUSTION TO A TEMPERATURE IN THE RANGE OF ABOUT 1200* TO 2000*A F., MAINTAINING THE COKE AT 1200* TO 2000*F. FOR A PERIOD TO COMPLETE THE CALCINATION, AND COLLECTING THE GASES HAVING THE DESIRED HIGH CONCENTRATION OF HYDROGEN LIBERATED DURING THE HEATING AND CALCINATION SEPARATELY FROM THE GASES LIBERATED DURING THE PREPARATION OF THE GREEN COKE.
References Cited (Backward Citations)
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Cited
US1754765A
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US1519784A
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US2445328A
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US2600430A
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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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |