US2579257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali metal dispersions
Assignee: EIDP Inc
•
Filing: 1949-03-17
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Granted: 1951-12-18
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Expires: 1969-03-17
Abstract
No abstract record available.
Inventors
- 👤 Virgil L Hansley
- 👤 Willard John P Hilts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:01
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1208; C10L1/14; C10L1/30; C10L1/301; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A COMPOSITION COMPRISING A DISPERSION OF FINELY DIVIDED ALKALI METAL PARTICLES IN AN INERT ORGANIC LIQUID HAVING A BOILING POINT ABOVE THE MELTING POINT OF SAID METAL AND CONTAINING 0.1 TO 25% BY WEIGHT OF A COMPLEX ADDITION COMPOUND RESULTING FROM THE REACTION BETWEEN (1) AN ALKALI METAL ALKOXIDE OF THE FORMULA MO-R WHEREIN M IS AN ALKALI METAL AND R IS FROM THE GROUP CONSISTING OF ALIPHATIC, CYCLOALIPHATIC AND AROMATIC RADICALS; AND (2) AN ALKALI METAL ORGANIC COMPOUND HAVING AT LEAST ONE RESIDUE OF THE STRUCTURE
Claim 2
Dependent Claim
87 words
A COMPOSITION COMPRISING A DISPERSION OF FINELY DIVIDED ALKALI METAL PARTICLES IN AN INERT ORGANIC LIQUID HAVING A BOILING POINT ABOVE THE MELTING POINT OF SAID METAL AND CONTAINING 0.1 TO 25% BY WEIGHT OF A COMPLEX ADDITION COMPOUND RESULTING FROM THE REACTION BETWEEN (1) AN ALKALI METAL ALKOXIDE OF THE FORMULA MO-R WHEREIN M IS AN ALKALI METAL AND R IS FROM THE GROUP CONSISTING OF ALIPHATIC, CYCLOALIPHATIC AND AROMATIC RADICALS; AND (2) AN ALKALI METAL ORGANIC COMPOUND HAVING AT LEAST ONE RESIDUE OF THE STRUCTURE
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |