US3302091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coulometric device
Assignee: Individual
•
Filing: 1963-04-22
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Granted: 1967-01-31
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ian H S Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; G; G01; G01R; G01R22/00; G01R22/02; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
AN ELECTROCHEMICAL COULOMETER CELL ELECTRICALLY CONNECTED IN SERIES WITH A SECONDARY BATTERY, SAID CELL COMPRISING: (A) A VESSEL CONTAINING A SINGLE BODY OF ALKALINE ELECTROLYTE; (B) A PAIR OF REVERSIBLE ELECTRODES MOUNTED IN CONTACT WITH SAID ELECTROLYTE; (C) EACH ELECTRODE CONSISTING ESSENTIALLY OF AN INERT SUPPORT AND SOLID ACTIVE MATERIAL THAT IS INSOLUBLE IN SAID ELECTROLYTE; (I) SAID ACTIVE MATERIAL BEING PRESENT IN BOTH ITS REDUCED AND OXIDIZED STATES WHICH ARE RESPECTIVELY METALLIC CADMIUM AND CADMIUM HYDROXIDE, WHEREBY UPON PASSAGE OF ELECTRIC CURTHROUGH THE CELL THE REVERSIBLE REACTIONS OCCURRING AT THE ELECTRODES ARE REPRESENTED BY THE EQUATION
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |