Patent US3276910A successfully refreshed from Google Patents.
US3276910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion transfer medium for electrochemical reaction apparatus
Assignee: Standard Oil Co
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Filing: 1961-10-12
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Granted: 1966-10-04
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Grasselli Robert
- 👤 James L Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:32
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A FUEL CELL, A HOUSING COMPRISING TWO HALF SHELLS OF NON-CONDUCTIVE MATERIAL, A PHYSICALLY SOLID PLATE-LIKE REHYDRATED ION-EXCHANGE MEMBRANE OF A POLYMERIC SALT OF GROUP IV METAL AND AN ACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC AND ARSENIC ACIDS POSITIONED BETWEEN SAID HALF SHELLS, MEANS HOLDING SAID HALF SHELLS AND SAID ION-EXCHANGE MEMBRANE TOGETHER, SAID PLATE-LIKE MEMBRANE HAVING OPPOSED SURFACES, A METAL SELECTED FROM THE GROUP OF PLATINUM, PALLADIUM, NICKEL, COBALT, OSMIUM, IRIDIUM, AND RHODIUM ON ONE OF SAID SURFACES AND FORMINMG A POROUS ELECTRODES, A METAL SELECTED FROM THE GROUP OF SILVER AND COPPER ON THE OTHER OF SAID SURFACES AND FORMING A POROUS ELECTRODE,
Claim 2
Dependent Claim
108 words
IN A FUEL CELL, A HOUSING COMPRISING TWO HALF SHELLS OF NON-CONDUCTIVE MATERIAL, A PHYSICALLY SOLID PLATE-LIKE REHYDRATED ION-EXCHANGE MEMBRANE OF A POLYMERIC SALT OF GROUP IV METAL AND AN ACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC AND ARSENIC ACIDS POSITIONED BETWEEN SAID HALF SHELLS, MEANS HOLDING SAID HALF SHELLS AND SAID ION-EXCHANGE MEMBRANE TOGETHER, SAID PLATE-LIKE MEMBRANE HAVING OPPOSED SURFACES, A METAL SELECTED FROM THE GROUP OF PLATINUM, PALLADIUM, NICKEL, COBALT, OSMIUM, IRIDIUM, AND RHODIUM ON ONE OF SAID SURFACES AND FORMINMG A POROUS ELECTRODES, A METAL SELECTED FROM THE GROUP OF SILVER AND COPPER ON THE OTHER OF SAID SURFACES AND FORMING A POROUS ELECTRODE,
References Cited (Backward Citations)
US2913511A
Cited
US3056647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |