US3716410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium battery electrolyte additive and method of improving discharge rate
Assignee: United States Department of the Air Force
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Filing: 1971-09-27
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Granted: 1973-02-13
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Expires: 1991-09-27
Abstract
Abstract A METHOD OF IMPROVING THE DISCHARGE RATE OF LITHIUM BATTERIES BY ADSING A SMALL AMOUNT OF A HEXAMETHYL PHOSPHORAMIDE (HEXAMETHYL-PHOSPHORIC TRIAMIDE; CHEMICAL ABSTRACTS REGISTRY NO.680-31-9) ADDITIVE TO THE LITHIUM PERCHLORATE-PROPYLENE CARBONATE (CARBONIC ACID, CYCLIC PROPYLENE ESTER; CHEMICAL ABSTRACTS REGISTRY NO. 10832-7) ELECTROLYTE OF THE BATTERY.
Inventors
- 👤 J Butler
- 👤 D Cogley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:50
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/168
Claims Analysis
Total Claims: 0
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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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |