Patent US2933440A successfully refreshed from Google Patents.
US2933440A
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Method and apparatus for detection of anode effect
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1956-10-09
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Granted: 1960-04-19
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Greenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:43
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN THE ART OF FUSED BATH ELECTROLYSIS WHEREIN THE PROBLEM OF ANODE EFFECT IS ENCOUNTERED, THE IMPROVEMENT COMPRISING THE STEPS OF DETECTING HIGH FREQUENCY IMPULSIVE CURRENT FLUCTUATIONS SUPERIMPOSED UPON THE DIRECT CURRENT EMPLOYED FOR SAID ELECTROLYSIS DUE TO ONSET OF ANODE EFFECT, AND CORRECTING THE CAUSE OF SAID DETECTED FLUCTUATIONS BEFORE SAID CAUSE PRODUCES UNDESIRABLE EFFECTS UPON SAID ELECTROLYSIS.
Claim 2
Dependent Claim
59 words
IN THE ART OF FUSED BATH ELECTROLYSIS WHEREIN THE PROBLEM OF ANODE EFFECT IS ENCOUNTERED, THE IMPROVEMENT COMPRISING THE STEPS OF DETECTING HIGH FREQUENCY IMPULSIVE CURRENT FLUCTUATIONS SUPERIMPOSED UPON THE DIRECT CURRENT EMPLOYED FOR SAID ELECTROLYSIS DUE TO ONSET OF ANODE EFFECT, AND CORRECTING THE CAUSE OF SAID DETECTED FLUCTUATIONS BEFORE SAID CAUSE PRODUCES UNDESIRABLE EFFECTS UPON SAID ELECTROLYSIS.
References Cited (Backward Citations)
DE895379C
Cited
US2545411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |