Patent US2870070A successfully refreshed from Google Patents.
US2870070A
Expired / Lapsed
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Electrodeposition of tin and electrolyte therefor
Assignee: United States Steel Corp
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Filing: 1957-07-17
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Granted: 1959-01-20
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Expires: 1977-07-17
Abstract
No abstract record available.
Inventors
- 👤 Richard F Higgs
- 👤 Charles J Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:30
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/30; C25D3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AS AN ELECTROLYTE FOR TIN PLATING, A WATER SOLUTION CONTAINING FROM 30 TO 80 G./L. OF SULFAMIC ACID, FROM 15 TO 50 G./L. OF STANNOUS IONS, AND FROM .2 TO 10 G./L. OF AN ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF DIETHYL, TRIMETHYL, TETRAMETHYL DIHYDROQUINOLINE, DIHYDROXYDIPHENYLSULFONE, BISPARAHYDROXYPHENYL, PROPANE, AND DIHYDROXYBENZOPHENONE.
Claim 2
Dependent Claim
51 words
AS AN ELECTROLYTE FOR TIN PLATING, A WATER SOLUTION CONTAINING FROM 30 TO 80 G./L. OF SULFAMIC ACID, FROM 15 TO 50 G./L. OF STANNOUS IONS, AND FROM .2 TO 10 G./L. OF AN ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF DIETHYL, TRIMETHYL, TETRAMETHYL DIHYDROQUINOLINE, DIHYDROXYDIPHENYLSULFONE, BISPARAHYDROXYPHENYL, PROPANE, AND DIHYDROXYBENZOPHENONE.
References Cited (Backward Citations)
US2552920A
Cited
GB756788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |