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Patent US2567934A successfully refreshed from Google Patents.
US2567934A
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Process of electrodepositing an alloy of lead and indium
Assignee: Federal Mogul Shoreham Ltd
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Filing: 1946-12-13
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Granted: 1951-09-18
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Expires: 1966-12-13
Abstract
No abstract record available.
Inventors
- 👤 Green David Frederick
- 👤 Mallet Noel Percy
- 👤 Briscoe James Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:18
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS OF ELECTRO-DEPOSITING AN ALLOY OF LEAD AND INDIUM WHICH COMPRISES THE STEPS OF PREPARING A NON-AQUEOUS SOLUTION OF ABOUT 20 GRAMS PER LITER OF INDIUM AS PERCHLORATE AND 1 TO 12 GRAMS PER LITER OF LEAD AS PERCHLORATE DISSOLVED IN ETHOXYETHYL ALCOHOL, PASSING A CURRENT THROUGH THE ELECTRODES WHILE MAINTAINING THE CATHODE CURRENT DENSITY AT ABOUT 7 TO 10 AMPERES PER SQUARE FOOT, THE ALLOY ELECTRO-DEPOSITED RANGING FROM 90 TO 1% INDIUM AND THE BALANCE LEAD, THE ANODE CONTAINING AN ALLOY OF LEAD AND INDIUM WITH SLIGHTLY HIGHER PERCENTAGE OF INDIUM THAN IN THE DEPOSIT AND MAINTAINING THE BATH TEMPERATURE FROM 60 TO 80* C.
Claim 2
Dependent Claim
107 words
A PROCESS OF ELECTRO-DEPOSITING AN ALLOY OF LEAD AND INDIUM WHICH COMPRISES THE STEPS OF PREPARING A NON-AQUEOUS SOLUTION OF ABOUT 20 GRAMS PER LITER OF INDIUM AS PERCHLORATE AND 1 TO 12 GRAMS PER LITER OF LEAD AS PERCHLORATE DISSOLVED IN ETHOXYETHYL ALCOHOL, PASSING A CURRENT THROUGH THE ELECTRODES WHILE MAINTAINING THE CATHODE CURRENT DENSITY AT ABOUT 7 TO 10 AMPERES PER SQUARE FOOT, THE ALLOY ELECTRO-DEPOSITED RANGING FROM 90 TO 1% INDIUM AND THE BALANCE LEAD, THE ANODE CONTAINING AN ALLOY OF LEAD AND INDIUM WITH SLIGHTLY HIGHER PERCENTAGE OF INDIUM THAN IN THE DEPOSIT AND MAINTAINING THE BATH TEMPERATURE FROM 60 TO 80* C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |