US2922709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of elemental alkali and alkaline earth metals and carbon
Assignee: Sunoco Inc
•
Filing: 1958-06-17
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Granted: 1960-01-26
•
Expires: 1978-06-17
Abstract
No abstract record available.
Inventors
- 👤 Stanford J Hetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:50
CPC Classifications
C; C22; C22B; C22B26/00; C01; C01B; C01B32/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
PROCESS FOR PRODUCING ELEMENTAL METAL AND ELEMENTAL CARBON WHICH COMPRISES CONTACTING A SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES WITH A HYDROCARBON AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE OF 800 TO 1400* C. AND RECOVERING ELEMENTAL METAL AND ELEMENTAL CARBON FROM THE REACTION PRODUCT.
Claim 2
Dependent Claim
53 words
PROCESS FOR PRODUCING ELEMENTAL METAL AND ELEMENTAL CARBON WHICH COMPRISES CONTACTING A SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES WITH A HYDROCARBON AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE OF 800 TO 1400* C. AND RECOVERING ELEMENTAL METAL AND ELEMENTAL CARBON FROM THE REACTION PRODUCT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |