US3567515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical cell containing sulfur dioxide as the cathode depolarizer
Assignee: Wyeth Holdings LLC
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Filing: 1970-03-25
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Granted: 1971-03-02
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Expires: 1990-03-25
Abstract
Abstract A PRIMARY AND SECONDARY ELECTROCHEMICAL CELL EFFECTIVE WITHOUT ELECTRODE SEPARATOR WHICH COMPRISES IN COMBINATION AN ANODE OF A METAL CAPABLE OF REDUCING SULFUR DIOXIDE, A CATHODE PARTICULARLY OF A HIGH SURFACE AREA MATERIAL, AN ELECTROLYTE SALT ONTAINING SULFUR DIOXIDE AS THE MAJOR CATHODE DEPOLARIZER, WITH THE USE OF A CO-SOLVENT IF DESIRED.
Inventors
- 👤 Donald Leonard Maricle
- 👤 John Phillip Mohns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0564; H01M10/0566; H01M10/0568; H01M10/0561; H01M10/0563; H01M10/0569; H01M6/00; H01M6/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |