US3122592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alkyllithium compounds
Assignee: Bridgestone Firestone Inc
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Filing: 1960-07-05
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Granted: 1964-02-25
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Eberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
C; C07; C07F; C07F1/00; C07F1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN THE PROCESS OF PRODUCING ALKYLLITHIUM BY REACTING IN A LIQUID HYDROCARBON VEHICLE UNDER A BLANKET OF INERT GAS AT A TEMPERATURE BETWEEN 0 AND 60*C., SUBSTANTIALLY EQUIMOLECULAR AMOUNTS OF FINELY DIVIDED LITHIUM AND MONOHALOALKANE WHICH COMPRISES 3 TO 8 CARBON ATOMS, THE IMPROVEMENT WHICH COMPRISES USING LITHIUM WITH WHICH IS ALLOYED 0.3 TO 1.0 PERCENT BY WEIGHT OF A METAL OF THE CLASS CONSISTING OF SODIUM AND POTASSIUM.
Claim 2
Dependent Claim
69 words
IN THE PROCESS OF PRODUCING ALKYLLITHIUM BY REACTING IN A LIQUID HYDROCARBON VEHICLE UNDER A BLANKET OF INERT GAS AT A TEMPERATURE BETWEEN 0 AND 60*C., SUBSTANTIALLY EQUIMOLECULAR AMOUNTS OF FINELY DIVIDED LITHIUM AND MONOHALOALKANE WHICH COMPRISES 3 TO 8 CARBON ATOMS, THE IMPROVEMENT WHICH COMPRISES USING LITHIUM WITH WHICH IS ALLOYED 0.3 TO 1.0 PERCENT BY WEIGHT OF A METAL OF THE CLASS CONSISTING OF SODIUM AND POTASSIUM.
References Cited (Backward Citations)
US2914578A
Cited
US2947793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |