US3022139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of diborane
Assignee: Olin Corp
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Filing: 1956-03-16
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Granted: 1962-02-20
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Expires: 1976-03-16
Abstract
No abstract record available.
Inventors
- 👤 Charles C Clark
- 👤 Frank A Kanda
- 👤 Aden J King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:45
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/06; C01B6/10; C01B6/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD FOR THE PREPARATION OF DIBORANE WHICH COMPRISES REACTING A REDUCED FORM OF BORON SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL BORON, METAL BORIDES AND BORON CARBIDES WITH AN OXIDE SELECTED FROM THE GROUP CONSISTING OF WATER VAPOR, MAGNESIA, ALUMINA, THORIA AND ZIRCONIA IN A HYDROGEN ATMOSPHERE AT A TEMPERATURE OF FROM 850*C. TO 1500*C. AND RECOVERING DIBORANE FROM THE REACTION MIXTURE.
Claim 2
Independent Claim
63 words
A METHOD FOR THE PREPARATION OF DIBORANE WHICH COMPRISES REACTING A REDUCED FORM OF BORON SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL BORON, METAL BORIDES AND BORON CARBIDES WITH AN OXIDE SELECTED FROM THE GROUP CONSISTING OF WATER VAPOR, MAGNESIA, ALUMINA, THORIA AND ZIRCONIA IN A HYDROGEN ATMOSPHERE AT A TEMPERATURE OF FROM 850*C. TO 1500*C. AND RECOVERING DIBORANE FROM THE REACTION MIXTURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |