US3258360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed secondary batteries
Assignee: Union Carbide Corp
•
Filing: 1962-06-27
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Granted: 1966-06-28
•
Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Karl V Kordesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:27
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; C; C01; C01B; C01B5/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A RECHARGEABLE STORAGE BATTERY COMPRISING A HERMETICALLY SEALED CONTAINER, AND IN SAID CONTAINER A POSITIVE AND A NEGATIVE ELECTRODE IN CONTACT WITH AN ELECTROLYTE, A RECOMBINATION CATALYST FOR PROMOTING THE RECOMBINATION OF OXYGEN AND HYDROGEN GAS EVOLVED AT SAID POSITIVE AND NEGATIVE ELECTRODES TO FORM WATER, SAID RECOMBINATION CATALYST COMPRISING A NOBLE METAL DEPOSITED ON A HIGH SURFACE AREA BASE, AND MEANS FOR PHYSICALLY SEPARATING SAID RECOMBINATION CATALYST FROM SAID ELECTROLYTE WHILE AT THE SAME TIME PROVIDING ACCESS OF EVOLVED OXYGEN AND HYDROGEN GAS TO SAID RECOMBINATION CATALYST.
Claim 2
Dependent Claim
88 words
A RECHARGEABLE STORAGE BATTERY COMPRISING A HERMETICALLY SEALED CONTAINER, AND IN SAID CONTAINER A POSITIVE AND A NEGATIVE ELECTRODE IN CONTACT WITH AN ELECTROLYTE, A RECOMBINATION CATALYST FOR PROMOTING THE RECOMBINATION OF OXYGEN AND HYDROGEN GAS EVOLVED AT SAID POSITIVE AND NEGATIVE ELECTRODES TO FORM WATER, SAID RECOMBINATION CATALYST COMPRISING A NOBLE METAL DEPOSITED ON A HIGH SURFACE AREA BASE, AND MEANS FOR PHYSICALLY SEPARATING SAID RECOMBINATION CATALYST FROM SAID ELECTROLYTE WHILE AT THE SAME TIME PROVIDING ACCESS OF EVOLVED OXYGEN AND HYDROGEN GAS TO SAID RECOMBINATION CATALYST.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |