US2553198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for the production of boron hydrides
Assignee: Allied Process Corp
•
Filing: 1945-02-03
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Granted: 1951-05-15
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Expires: 1965-02-03
Abstract
No abstract record available.
Inventors
- 👤 Sherman D Lesesne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:54
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/06; C01B6/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
IN THE PREPARATION OF DIBORANE, THE STEPS WHICH COMPRISES BRINGING TOGETHER FINELY DIVIDED LITHIUM HYDRIDE AND BORON FLUORIDE IN THE PRES-
Claim 2
Dependent Claim
21 words
IN THE PREPARATION OF DIBORANE, THE STEPS WHICH COMPRISES BRINGING TOGETHER FINELY DIVIDED LITHIUM HYDRIDE AND BORON FLUORIDE IN THE PRES-
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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |