US2710798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing sodium from sodium ferrite
Assignee: EIDP Inc
•
Filing: 1952-04-04
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Granted: 1955-06-14
•
Expires: 1972-04-04
Abstract
No abstract record available.
Inventors
- 👤 Virgil L Hansley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:55
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE METHOD OF PRODUCING SODIUM WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF SODIUM FERRITE, SODIUM FERRATE AND SODUIM HYPOFERRITE WITH IRON AT A TEMPERATURE OF NOT LESS THAN ABOUT 1100* C. AND A PARTIAL PRESSURE OF SODIUM VAPOR OF NOT MORE THAN ABOUT 2 MM. OF MERCURY.
Claim 2
Independent Claim
50 words
THE METHOD OF PRODUCING SODIUM WHICH COMPRISES REACTING A MEMBER OF THE GROUP CONSISTING OF SODIUM FERRITE, SODIUM FERRATE AND SODUIM HYPOFERRITE WITH IRON AT A TEMPERATURE OF NOT LESS THAN ABOUT 1100* C. AND A PARTIAL PRESSURE OF SODIUM VAPOR OF NOT MORE THAN ABOUT 2 MM. OF MERCURY.
References Cited (Backward Citations)
US1016758A
Cited
US2391728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |