US3293161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for starting up mercury cathode electrolytic cells
Assignee: De Nora SpA
•
Filing: 1963-09-27
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Granted: 1966-12-20
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Henry W Laub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:55
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD FOR STRTING UP MERCURY ELECTRLYTTIC CELLS HAVING METAL CATHODIC CONTACT SURFACES BY IN SITU WETTING OF HAVING METAL CATHODIC CONTACT SURFACES BY IN SITU WETTING OFTHE CATHODIC CONTACT SURFACES WITH MERCURY AMALGAM, WITHIN THE CELL, BY THE USE OF ELECTRLYTIC CURRENT WHICH COMPRISING SOIDUM CARBONATE INTO SAID CELL IN CONTACT WITH SAID CATHODIC SURFACE, (B) IMPRESSING AN ELECTRLYTIC CURRENT ON SAID CELL, (C) INTRODUCING MERCURY ONTO SAID CATHODIC SURFACE, (D) CONTINUING SAID ELECTRLYTIC CURRENT UNTIL SAID CATHODIC SURFACE IS WETTED WITH MERCURY AMALGAM, THEN STOPPING SAID CURRENT, (E) REMOVINNG SAID ALKALINE SOLUTION FROM SAID CELL, (F) FLUSHING SAID CELL WITH THE ELECTRLYTIC SOLUTION TO BE ELECTRLYZED, AND SUBSEQUENTY (G) ELECTROLYZING SAID ELECTRLYTIC SOLUTION IN SAID CELL.
Claim 2
Independent Claim
118 words
A METHOD FOR STRTING UP MERCURY ELECTRLYTTIC CELLS HAVING METAL CATHODIC CONTACT SURFACES BY IN SITU WETTING OF HAVING METAL CATHODIC CONTACT SURFACES BY IN SITU WETTING OFTHE CATHODIC CONTACT SURFACES WITH MERCURY AMALGAM, WITHIN THE CELL, BY THE USE OF ELECTRLYTIC CURRENT WHICH COMPRISING SOIDUM CARBONATE INTO SAID CELL IN CONTACT WITH SAID CATHODIC SURFACE, (B) IMPRESSING AN ELECTRLYTIC CURRENT ON SAID CELL, (C) INTRODUCING MERCURY ONTO SAID CATHODIC SURFACE, (D) CONTINUING SAID ELECTRLYTIC CURRENT UNTIL SAID CATHODIC SURFACE IS WETTED WITH MERCURY AMALGAM, THEN STOPPING SAID CURRENT, (E) REMOVINNG SAID ALKALINE SOLUTION FROM SAID CELL, (F) FLUSHING SAID CELL WITH THE ELECTRLYTIC SOLUTION TO BE ELECTRLYZED, AND SUBSEQUENTY (G) ELECTROLYZING SAID ELECTRLYTIC SOLUTION IN SAID CELL.
References Cited (Backward Citations)
GB381049A
Cited
US3042602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |