US3489610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery having a porous insoluble hydrous inorganic oxide separator
Assignee: McDonnell Douglas Corp
•
Filing: 1964-06-30
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Granted: 1970-01-13
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Carl Berger
- 👤 Arie E Levy-Pascal
- 👤 Donald H Mcclelland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/431; H01M50/434; H01M50/489; H01M50/491; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A BATTERY COMPRISING OF PAIR OF ELECTRODES OF OPPOSITE POLARITY AND A POROUS SEPARATOR BETWEEN SAID ELECTRODES FOR RETAINING ELECROLYTE AND PERMITTING TRANSFER OF ELECTROLYTE IONS, SAID SEPARATOR CONSISTING ESSENTIALLY OF A POROUS INSOLUBLE HYDROUS INROGANIC OXIDE AND SAID SEPARATOR HAVING A POROSITY PERMITTING TRANSFER OF ELECTROLYTE IONS THROUGH SUCH SEPARATOR, BUT PREVENTING TRANSFER OF ELECTRODE IONS THERETHROUGH.
Claim 2
Dependent Claim
58 words
A BATTERY COMPRISING OF PAIR OF ELECTRODES OF OPPOSITE POLARITY AND A POROUS SEPARATOR BETWEEN SAID ELECTRODES FOR RETAINING ELECROLYTE AND PERMITTING TRANSFER OF ELECTROLYTE IONS, SAID SEPARATOR CONSISTING ESSENTIALLY OF A POROUS INSOLUBLE HYDROUS INROGANIC OXIDE AND SAID SEPARATOR HAVING A POROSITY PERMITTING TRANSFER OF ELECTROLYTE IONS THROUGH SUCH SEPARATOR, BUT PREVENTING TRANSFER OF ELECTRODE IONS THERETHROUGH.
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |