US2854388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of copper-tin alloys
Assignee: City Auto Stamping Co
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Filing: 1955-03-14
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Granted: 1958-09-30
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 William H Safranek
- 👤 Charles L Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:32
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A PROCESS FOR ELECTRODEPOSITING A COPPER-TIN ALLOY OF OVER 15 PERCENT TIN FROM AN ELECTROLYTE COMPRISING A CUPROUS SALT, A TIN SALT, AND A CYANIDE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL CYANIDES AND AMMONIUM CYANIDE, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF ELECTROLYZING SAID ELECTROLYTE HAVING ADDED THERETO AT LEAST 0.5 MOLE PER LITER OF A HALIDE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL AND AMMONIUM HALIDES, AND REPLENISHING SAID ELECTRLYTE WITH COPPER AND TIN BY DISSOLUTION OF A SOLUBLE COPPER-TIN ALLOY ANODE CONTAINING MORE THAN 15 PERCENT TIN INSERTED IN SAID ELECTROLYTE.
Claim 2
Dependent Claim
99 words
IN A PROCESS FOR ELECTRODEPOSITING A COPPER-TIN ALLOY OF OVER 15 PERCENT TIN FROM AN ELECTROLYTE COMPRISING A CUPROUS SALT, A TIN SALT, AND A CYANIDE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL CYANIDES AND AMMONIUM CYANIDE, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF ELECTROLYZING SAID ELECTROLYTE HAVING ADDED THERETO AT LEAST 0.5 MOLE PER LITER OF A HALIDE SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL AND AMMONIUM HALIDES, AND REPLENISHING SAID ELECTRLYTE WITH COPPER AND TIN BY DISSOLUTION OF A SOLUBLE COPPER-TIN ALLOY ANODE CONTAINING MORE THAN 15 PERCENT TIN INSERTED IN SAID ELECTROLYTE.
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |