US2724010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-depolarized cell
Assignee: Union Carbide Corp
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Filing: 1953-09-21
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Granted: 1955-11-15
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Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Charles R Fisher
- 👤 Jr James Southworth
- 👤 Erwin A Schumacher
- 👤 Roswell J Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:21
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M12/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN ANODE AND CATHODE UNIT FOR AN AIR-DEPOLARIZED CELL COMPRISING A PAIR OF METALLIC PANELS SPACED APART TO FORM A CHANNEL THEREBETWEEN, A CARBON ELECTRODE BONDED TO AND IN ELECTRICAL CONTACT WITH EACH OF SAID PANELS, EACH OF SAID ELECTRODES BEING POSITIONED ON A SIDE OF A PANEL OPPOSITE SAID CHANNEL A PORTION OF EACH OF SAID ELECTRODES BEING EXPOSED TO SAID CHANNEL, SAID ELECTRODES BEING LIQUID-IMPERMEABLE, A FRAME SUPPORTING SAID PANELS AND ELECTRODES AND EXTENDING AROUND THE PERIPHERY OF SAID PANELS AND ELECTRODES ENCLOSING SAID CHANNEL ON ALL BUT ONE SIDE WHICH SIDE OPENS ON A PASSAGE THROUGH SAID FRAME, SAID PANELS EXTENDING INTO SAID PASSAGE AND BEING ELECTRICALLY CONNECTED TO A TERMINAL, A PAIR OF ZINC PLATES EACH SUBSTANTIALLY PARALLEL TO AND SPACED FROM THAT SIDE OF AN ELECTRODE MOST DISTANT FROM SAID CHANNEL, SAID ZINC PLATES BEING SUPPORTED BY SAID FRAME AND ELECTRICALLY CONNECTED TO A TERMINAL.
Claim 2
Dependent Claim
150 words
AN ANODE AND CATHODE UNIT FOR AN AIR-DEPOLARIZED CELL COMPRISING A PAIR OF METALLIC PANELS SPACED APART TO FORM A CHANNEL THEREBETWEEN, A CARBON ELECTRODE BONDED TO AND IN ELECTRICAL CONTACT WITH EACH OF SAID PANELS, EACH OF SAID ELECTRODES BEING POSITIONED ON A SIDE OF A PANEL OPPOSITE SAID CHANNEL A PORTION OF EACH OF SAID ELECTRODES BEING EXPOSED TO SAID CHANNEL, SAID ELECTRODES BEING LIQUID-IMPERMEABLE, A FRAME SUPPORTING SAID PANELS AND ELECTRODES AND EXTENDING AROUND THE PERIPHERY OF SAID PANELS AND ELECTRODES ENCLOSING SAID CHANNEL ON ALL BUT ONE SIDE WHICH SIDE OPENS ON A PASSAGE THROUGH SAID FRAME, SAID PANELS EXTENDING INTO SAID PASSAGE AND BEING ELECTRICALLY CONNECTED TO A TERMINAL, A PAIR OF ZINC PLATES EACH SUBSTANTIALLY PARALLEL TO AND SPACED FROM THAT SIDE OF AN ELECTRODE MOST DISTANT FROM SAID CHANNEL, SAID ZINC PLATES BEING SUPPORTED BY SAID FRAME AND ELECTRICALLY CONNECTED TO A TERMINAL.
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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |