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US2923731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of lithium tetramethoxyborate
Assignee: Callery Chemical Co
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Filing: 1956-03-19
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Granted: 1960-02-02
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Cunningham George Lewis
- 👤 Pretka Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METHOD OF PREPARING LITHIUM TETRAMETHOXYBORATE WHICH CONSISTS OF REACTING A LITHIUM HALIDE AND A SALT OF THE CLASS CONSISTING OF NAB(OCH3)4 AND KB(OCH3)4 IN METHANOL, SEPARATING THE SOLID ALKALI HALIDE BY-PRODUCT, AND RECOVERING THE LITHIUM TETRAMETHOXYBORATE FROM METHANOL SOLUTION.
Claim 2
Independent Claim
40 words
A METHOD OF PREPARING LITHIUM TETRAMETHOXYBORATE WHICH CONSISTS OF REACTING A LITHIUM HALIDE AND A SALT OF THE CLASS CONSISTING OF NAB(OCH3)4 AND KB(OCH3)4 IN METHANOL, SEPARATING THE SOLID ALKALI HALIDE BY-PRODUCT, AND RECOVERING THE LITHIUM TETRAMETHOXYBORATE FROM METHANOL SOLUTION.
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |