Patent US2497988A successfully refreshed from Google Patents.
US2497988A
Expired / Lapsed
US
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Indium plating
Assignee: Federal Mogul Shoreham Ltd
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Filing: 1945-07-11
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Granted: 1950-02-21
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Expires: 1965-07-11
Abstract
No abstract record available.
Inventors
- 👤 Green David Frederick
- 👤 Salmon John Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:09
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN AQUEOUS INDIUM CVANIDE DEXTROSE ELECTROLYTIC BATH FOR ELECTRODEPOSITING INDIUM CONSISTING OF FROM 5 TO 40 GRAMS PER LITER OF INDIUM, BY WEIGHT OF DEXTROSE TO INDIUM OF 1 TO 1, A CYANIDE OF THE GROUP CONSISTING OF SODIUM CYANIDE AND POTASSIUM CYANIDE OF FROM 1 TO 5 TIMES THE WEIGHT OF INDIUM PRESENT AND THE CORRESPONDING HYDROXIDE OF THE ABOVE CYANIDE IN QUANTITIES OF FROM 6 TO 135 GRAMS PER LITER.
Claim 2
Dependent Claim
72 words
AN AQUEOUS INDIUM CVANIDE DEXTROSE ELECTROLYTIC BATH FOR ELECTRODEPOSITING INDIUM CONSISTING OF FROM 5 TO 40 GRAMS PER LITER OF INDIUM, BY WEIGHT OF DEXTROSE TO INDIUM OF 1 TO 1, A CYANIDE OF THE GROUP CONSISTING OF SODIUM CYANIDE AND POTASSIUM CYANIDE OF FROM 1 TO 5 TIMES THE WEIGHT OF INDIUM PRESENT AND THE CORRESPONDING HYDROXIDE OF THE ABOVE CYANIDE IN QUANTITIES OF FROM 6 TO 135 GRAMS PER LITER.
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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |