Patent US2685501A successfully refreshed from Google Patents.
US2685501A
Expired / Lapsed
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Process for preparing boron
Assignee: United States Atomic Energy Commission
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Filing: 1945-08-28
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Granted: 1954-08-03
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Expires: 1965-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jerome S Spevack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:22
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE PROCESS FOR PREPARING ELEMENTAL BORON IN HIGH DENSITY FORM WHICH COMPRISES FORMING A FINE DISPERSION OF MOLTEN ALKALI METAL IN GASEOUS BORON HALIDE, AND REACTING THE DISPERSED ALKALI METAL WITH SAID BORON HALIDE.
Claim 2
Dependent Claim
34 words
THE PROCESS FOR PREPARING ELEMENTAL BORON IN HIGH DENSITY FORM WHICH COMPRISES FORMING A FINE DISPERSION OF MOLTEN ALKALI METAL IN GASEOUS BORON HALIDE, AND REACTING THE DISPERSED ALKALI METAL WITH SAID BORON HALIDE.
References Cited (Backward Citations)
US1306568A
Cited
US2091087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |