US3261714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed dry cells having an ionization catalyst in the depolarizer
Assignee: Union Carbide Corp
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Filing: 1963-01-07
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Granted: 1966-07-19
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Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 Karl V Kordesch
- 👤 Lewis F Urry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:38
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; H01M10/06; H01M10/12; H01M10/34; H01M10/342; H01M10/523; H01M10/526; H01M2300/00; H01M2300/0085; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A DRY CELL BATTERY COMPRISING A SEALED CONTAINER, AND IN SAID CONTAINER, AN ANODE, A CATHODE IN THE FORM OF A DEPOLARIZER MIX, SAID CATHODE HAVING A GREATER CHARGE CAPACITY THAN SAID ANODE, AND AN IMMOBILIZED ELECTROLYTE IN CONTACT THEREBETWEEN, SAID DEPOLARIZER MIX COMPRISING PARTICLES OF ACTIVATED CARBON HAVING COATED THEREON A HYDROGEN IONIZATION CATALYST OF A PLATINUM METAL, SAID PLATINUM METAL CATALYST BEING PRESENT IN AMOUNTS OF FROM ABOUT 0.1 TO ABOUT 10 MILLIGRAMS OF METAL PER GRAM OF CARBON.
Claim 2
Dependent Claim
81 words
A DRY CELL BATTERY COMPRISING A SEALED CONTAINER, AND IN SAID CONTAINER, AN ANODE, A CATHODE IN THE FORM OF A DEPOLARIZER MIX, SAID CATHODE HAVING A GREATER CHARGE CAPACITY THAN SAID ANODE, AND AN IMMOBILIZED ELECTROLYTE IN CONTACT THEREBETWEEN, SAID DEPOLARIZER MIX COMPRISING PARTICLES OF ACTIVATED CARBON HAVING COATED THEREON A HYDROGEN IONIZATION CATALYST OF A PLATINUM METAL, SAID PLATINUM METAL CATALYST BEING PRESENT IN AMOUNTS OF FROM ABOUT 0.1 TO ABOUT 10 MILLIGRAMS OF METAL PER GRAM OF CARBON.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |