Patent US3222288A successfully refreshed from Google Patents.
US3222288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing sodium hydride
Assignee: Millennium Petrochemicals Inc
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Filing: 1960-12-12
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Granted: 1965-12-07
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Virgil L Hansley
- 👤 Morgan Fred Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:04
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/04; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A PROCESS FOR PREPARING A SODIUM HYDRIDE DISPERSION BY HYDROGENATION OF SODIUM IN AN INERT LIQUID REACTION MEDIUM THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SUCH HYDROGENATION IN THE PRESENCE OF FROM ABOUT 0.5 TO ABOUT 10% BY WEIGHT, BASED ON THE SODIUM, OF AN ORGANIC COMPOUND SELECTED FORM THE GROUP CONSISTING OF ETHYL SILICATE, METHYL SILICATE, BUTYL SILICATE, AND BUTYL TITANATE TO OBTAIN A SODIUM HYDRIDE PRODUCT HAVING XXXXXXXXXX PARTICLE SIZE OF LESS THAN 10 MICRONS.
Claim 2
Dependent Claim
77 words
IN A PROCESS FOR PREPARING A SODIUM HYDRIDE DISPERSION BY HYDROGENATION OF SODIUM IN AN INERT LIQUID REACTION MEDIUM THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SUCH HYDROGENATION IN THE PRESENCE OF FROM ABOUT 0.5 TO ABOUT 10% BY WEIGHT, BASED ON THE SODIUM, OF AN ORGANIC COMPOUND SELECTED FORM THE GROUP CONSISTING OF ETHYL SILICATE, METHYL SILICATE, BUTYL SILICATE, AND BUTYL TITANATE TO OBTAIN A SODIUM HYDRIDE PRODUCT HAVING XXXXXXXXXX PARTICLE SIZE OF LESS THAN 10 MICRONS.
References Cited (Backward Citations)
US2566365A
Cited
US2720444A
Cited
US2910441A
Cited
US2990377A
Cited
US2915542A
Cited
US3116112A
Cited
US3110601A
Cited
US3119852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |