US3143440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell
Assignee: Individual
•
Filing: 1960-08-04
•
Granted: 1964-08-04
•
Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hunger Herbert
- 👤 James E Wynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:30
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/10; H01M8/1009; H01M2300/00; H01M2300/0017; H01M2300/0065; H01M2300/0082; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A FUEL CELL FOR THE DIRECT PRODUCTIN OF ELECTRICAL ENERGY FROM A LIQUID FUEL COMPRISNG A SOLVATED ANION EXCHANGE RESIN MEMBRANE AS THE SOLE ELECTROLYTE, SAID MEMBRANE BEIG POSITIONED BETWEEN TWO GAS PERMEABLE POROUS ELECTRODES, MEANS FOR APPLYIG A LIQUID FUEL TO THE OROUS FUEL ELECTRODE, SAID LIQUID FUEL CONSISTING OF THE EXOTHERMIC REACTION PROCUDTS OF AN AQUEOUS SOLUTION OF FORMALDEHYDE CONTAINING ABOUT 37% OF FORMALDEHYDE WITH AN AQUEOUS SOLUTION OF POTASSIUM HYDROXIDE, SAID REACTION PRODUCT, AFTER COOLING CONSISTIG OF A MIXTURE OF METHANOL, FORMALDEHYDE AND POTASSIUM FORMATE AND MEANS FOR SUPPLYING A GASEOUS OXIDANT TO THE OTHER POROUS ELECTRODE.
Claim 2
Dependent Claim
100 words
A FUEL CELL FOR THE DIRECT PRODUCTIN OF ELECTRICAL ENERGY FROM A LIQUID FUEL COMPRISNG A SOLVATED ANION EXCHANGE RESIN MEMBRANE AS THE SOLE ELECTROLYTE, SAID MEMBRANE BEIG POSITIONED BETWEEN TWO GAS PERMEABLE POROUS ELECTRODES, MEANS FOR APPLYIG A LIQUID FUEL TO THE OROUS FUEL ELECTRODE, SAID LIQUID FUEL CONSISTING OF THE EXOTHERMIC REACTION PROCUDTS OF AN AQUEOUS SOLUTION OF FORMALDEHYDE CONTAINING ABOUT 37% OF FORMALDEHYDE WITH AN AQUEOUS SOLUTION OF POTASSIUM HYDROXIDE, SAID REACTION PRODUCT, AFTER COOLING CONSISTIG OF A MIXTURE OF METHANOL, FORMALDEHYDE AND POTASSIUM FORMATE AND MEANS FOR SUPPLYING A GASEOUS OXIDANT TO THE OTHER POROUS ELECTRODE.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |