US3708416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiporosity electrode for electrochemical conversion
Assignee: Phillips Petroleum Co
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Filing: 1970-08-28
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Granted: 1973-01-02
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Expires: 1990-08-28
Abstract
Abstract IN AN ELECTROCHEMICAL PROCESS, THE REACTION TAKES PLACE WITHIN THE CONFINES OF A POROUS ELECTRODE ELEMENT HAVING A CORE SECTION WHICH IS RELATIVELY IMPERVIOUS TO THE ELECTROLYTE AND AN OUTER SECTION IN CONTACT WITH THE ELECTROLYTE WITH HAS RELATIVELY LARGE PORES.
Inventors
- 👤 F Ruehlen
- 👤 H Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:07
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03; C25B11/031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |