US3184338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of negative electrodes
Assignee: Union Carbide Corp
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Filing: 1962-01-31
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Granted: 1965-05-18
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Gustav A Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A FORMATION PROCESS FOR CONVERTING NEGATIVE ELECTRODE STOCK CONSISTING ESSENTIALLY OF A CONDUCTIVE METAL MATRIX THE INTERSTICES OF WHICH ARE FILLED WITH AN ELECTRODEPOSITED COMPLEX OF CADMIUM HYDROXIDE AND NITROGENOUS COMPOUNDS INTO A FINISHED ELECTRODE READY FOR USE IN A GALVANIC CELL, THE IMPROVEMENT CONSISTING ESSENTIALLY OF THE FOLLOWING ORDER OF STEPS; ELECTROCHEMICALLY CHARGING SAID CADMIUM, REDUCING THE THICKNESS OF SAID CONDUCTIVE METAL MATRIX TO THE DESIRED SIZE BY THE APPLICATION OF PRESSURE, DISCHARGING SAID SPONGY METALLIC CADMIUM TO FORM CADMIUM HYDROXIDE, WASHING THE THUS FORMED ELECTRODE TO REMOVE SAID NITROGENOUS COMPOUNDS, AND DRYING SAID ELECTRODE.
Claim 2
Dependent Claim
97 words
IN A FORMATION PROCESS FOR CONVERTING NEGATIVE ELECTRODE STOCK CONSISTING ESSENTIALLY OF A CONDUCTIVE METAL MATRIX THE INTERSTICES OF WHICH ARE FILLED WITH AN ELECTRODEPOSITED COMPLEX OF CADMIUM HYDROXIDE AND NITROGENOUS COMPOUNDS INTO A FINISHED ELECTRODE READY FOR USE IN A GALVANIC CELL, THE IMPROVEMENT CONSISTING ESSENTIALLY OF THE FOLLOWING ORDER OF STEPS; ELECTROCHEMICALLY CHARGING SAID CADMIUM, REDUCING THE THICKNESS OF SAID CONDUCTIVE METAL MATRIX TO THE DESIRED SIZE BY THE APPLICATION OF PRESSURE, DISCHARGING SAID SPONGY METALLIC CADMIUM TO FORM CADMIUM HYDROXIDE, WASHING THE THUS FORMED ELECTRODE TO REMOVE SAID NITROGENOUS COMPOUNDS, AND DRYING SAID ELECTRODE.
References Cited (Backward Citations)
US3009980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |