US3682775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for heating hydrogen gas
Assignee: Reynolds Metals Co
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Filing: 1968-10-11
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Granted: 1972-08-08
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Expires: 1988-10-11
Abstract
Abstract TO REDUCE DEGRADATION OF REFRACTORY CARBIDES EXPOSED AT HIGH TEMPERATURES TO HYDROGEN GAS, SUCH AS IN A FURNACE OR NUCLEAR REACTOR ENVIRONMENT, A HYDROCARBON WHICH IS GASEOUS AT THAT TEMPERATURE IS ADMIXED WITH THE HYDROGEN. SUITABLE HYDROCARBONS INCLUDE METHANE, ETHYLENE, AND ACETYLENE.
Inventors
- 👤 Aristid V Grosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:56
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |