US3591483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm-type electrolytic cells
Assignee: Diamond Shamrock Chemicals Co
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Filing: 1968-09-27
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Granted: 1971-07-06
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Expires: 1988-09-27
Abstract
Abstract A DIAPHRAGM-TYPE ELECTROLYTIC CELL IS PROVIDED WHICH IS ESPECIALLY SUITED TO THE USE OF DIMENSIONALLY STABLE ANODES. THE CELL IS CHARACTERIZED IN HAVING A METAL BASE WHICH SERVES AS A RIGID SUPPORT FOR THE ANODES, AS A CONDUCTOR FOR DISTRIBUTING CURRENT TO THE ANODES AND AS A RIGID SUPPORT FOR THE CELL CAN. FURTHERMORE A SHEET OF ELECTRICALLY NON-CONDUCTIVE MATERIAL COVERS THE ENTIRE CELL BASE AND SERVES TO INSULATE THE CONTACT BETWEEN THE CELL CAN AND THE CELL BASE AND ALSO PROVIDES A HYDRAULIC SEAL TO PREVENT LEAKAGE OF ELECTROLYTE.
Inventors
- 👤 Richard E Loftfield
- 👤 Henry W Laub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46; C25B9/00; C25B9/60; C25B9/65
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |