US3288643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making charged cadmium electrodes
Assignee: Union Carbide Corp
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Filing: 1964-01-06
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Granted: 1966-11-29
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:52
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; C; C22; C22B; C22B17/00; H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/36; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS FOR THE MANUFACTURE OF CHARGED CADMIUM ELECTODES WHICH COMPRISES FORMING A HOMOGENEOUS MIXTURE COMPRISING FROM ABOUT 80 TO 90 WEIGHT PERCENT OF A CADMIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CADMIUM OXIDE, CADMIUM HYDROXIDE, CADMIUM ACETATE, CADMIUM CARBONATE, CADMIUM CHLORIDE, CADMIUM CHLORATE, CADMIUM SULFATE AND CADMIUM NITRITE, AND FROM ABOUT 10 TO 20 WEIGHT PERCENT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ZINC, BOTH BASED ON THE TOTAL WEIGHT OF THE MIXTURE, COMPRESSING SAID MIXTURE INTO A CONDUCTIVE CARRIER GRID TO ABOUT 40 TO 80 PERCENT OF THE THEORETICAL DENSITY AND IMMERSING THE GRID CONTAINING THE COMPRESSED MIXTURE IN AN ALKALINE SOLUTION SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE AND SODIUM HYDROXIDE HAVING A CONCENTRATION OF AT LEAST 6 NORMAL AT A TEMPERATURE OF ABOUT 100*C. FOR AT LEAST 5 MINUTES, REMOVING RESIDUAL HYDROXIDE AND DRYING THE THUS FORMED ELECTRODE IN AN INERT ATMOSPHERE.
Claim 2
Dependent Claim
152 words
A PROCESS FOR THE MANUFACTURE OF CHARGED CADMIUM ELECTODES WHICH COMPRISES FORMING A HOMOGENEOUS MIXTURE COMPRISING FROM ABOUT 80 TO 90 WEIGHT PERCENT OF A CADMIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CADMIUM OXIDE, CADMIUM HYDROXIDE, CADMIUM ACETATE, CADMIUM CARBONATE, CADMIUM CHLORIDE, CADMIUM CHLORATE, CADMIUM SULFATE AND CADMIUM NITRITE, AND FROM ABOUT 10 TO 20 WEIGHT PERCENT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ZINC, BOTH BASED ON THE TOTAL WEIGHT OF THE MIXTURE, COMPRESSING SAID MIXTURE INTO A CONDUCTIVE CARRIER GRID TO ABOUT 40 TO 80 PERCENT OF THE THEORETICAL DENSITY AND IMMERSING THE GRID CONTAINING THE COMPRESSED MIXTURE IN AN ALKALINE SOLUTION SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE AND SODIUM HYDROXIDE HAVING A CONCENTRATION OF AT LEAST 6 NORMAL AT A TEMPERATURE OF ABOUT 100*C. FOR AT LEAST 5 MINUTES, REMOVING RESIDUAL HYDROXIDE AND DRYING THE THUS FORMED ELECTRODE IN AN INERT ATMOSPHERE.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |