US3355262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process
Assignee: Ethyl Corp
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Filing: 1963-09-30
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Granted: 1967-11-28
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis M Beaird
- 👤 Kobetz Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:40
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/24; C01B6/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE PROCESS FOR MAKING SODIUM ALUMINUM TETRAHYDRIDE COMPRISING REACTIN SODUIUM ALUMINUM HEXAHYDRIDE, ALUMIMUM AND HYDROGEN IN THE PRESENCE OF AN ORGANIC LIQUID REACTION MEDUM STABLE AT REACTION CONDITIONS, SAID MEDIUM BEING SELECTED FROM THE GROUP CONSISTING OF ETHER, ALIPHATIC HYDROCARBONS, AND AROMATIC HYDROCARBONS AND THE REACTION BEING AT A PRESSURE OF ABOUT 1000 TO 5000 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF ABOUT 100 TO 200*C.
Claim 2
Dependent Claim
68 words
THE PROCESS FOR MAKING SODIUM ALUMINUM TETRAHYDRIDE COMPRISING REACTIN SODUIUM ALUMINUM HEXAHYDRIDE, ALUMIMUM AND HYDROGEN IN THE PRESENCE OF AN ORGANIC LIQUID REACTION MEDUM STABLE AT REACTION CONDITIONS, SAID MEDIUM BEING SELECTED FROM THE GROUP CONSISTING OF ETHER, ALIPHATIC HYDROCARBONS, AND AROMATIC HYDROCARBONS AND THE REACTION BEING AT A PRESSURE OF ABOUT 1000 TO 5000 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF ABOUT 100 TO 200*C.
References Cited (Backward Citations)
FR1235680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |