US3743592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sealing an anode connection and method therefor
Assignee: BASF Corp
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Filing: 1971-09-01
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Granted: 1973-07-03
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Expires: 1991-09-01
Abstract
Abstract IN A DIAPHRAGM-TYPE ELECTROLYTIC CELL FOR THE PRODUCTION OF CHLORINE AND CAUSTIC ALKALI FROM ALKALI METAL CHLORIDE SOLUTIONS AND HAVING A RESILIENT BOTTOM SHEETING COVERING THE BOTTOM, AN IMPROVED SEAL FOR THE PURPOSE OF KEEPING OF CORROSIVE ELECTROLYTE OUT OF AN ANODE CON- NECTION IS OBTAINED BY THE USE OF AN O-RING SEAL IN COMBINATION WITH THE RESILIENT BOTTOM SHEETING.
Inventors
- 👤 R Metcalfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:04
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/63; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |