Patent US3701724A successfully refreshed from Google Patents.
US3701724A
Expired / Lapsed
US
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Electrodes for electrochemical processes
Assignee: Imperial Chemical Industries Ltd
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Filing: 1969-10-03
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Granted: 1972-10-31
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Expires: 1989-10-03
Abstract
Abstract AN ELECTRODE FOR USE IN ELECTROCHEMICAL PROCESSES COMPRISING A FILM-FORMING METAL SUPPORT MEMBER AND A COATING THEREON CONSISTING OF (A) AN OPERATIVE ELECTRODE MATERIAL, E.G., A PLATINUM GROUP METAL OXIDE, IN MINOR AMOUNT AND (B) ONE OR MORE OF TIN DIOXIDE, ANTIMONY PENTOXIDE, ANTIMONY TETROXIDE AND GERMANIUM DIOXIDE IN MAJOR AMOUNT.
Inventors
- 👤 John Hubert Entwisle
- 👤 Anthony Scrutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:33
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B11/093
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |