US2658032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of bright copper-tin alloy
Assignee: City Auto Stamping Co
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Filing: 1949-06-11
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Granted: 1953-11-03
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Expires: 1969-06-11
Abstract
No abstract record available.
Inventors
- 👤 Charles L Faust
- 👤 Wilbur G Hespenheide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:26
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/60; C25D3/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN AQUEOUS BATH USEFUL IN THE COELECTRODEPOSITION OF BRIGHT COPPER-TIN ALLOYS AND HAVING A PH OF FROM 7 TO 10, CONSISTING OF ESENTIALLY OF AN ALIKALI CYANIDE, AN ALKALI ORTHOPHOSPHATE, CUPROUS CYANIDE, STANNOUS PYROPHOSPHATE, A MATERIAL SELECTED FROM THE GROUP CONSISTIG OF GLUE, GELATIN, AND HYDROLYSIS PRODUCTS THEEOF, AN EXCESS OF ALKALI PYROPHOSPHATE, AND WATER.
Claim 2
Dependent Claim
55 words
AN AQUEOUS BATH USEFUL IN THE COELECTRODEPOSITION OF BRIGHT COPPER-TIN ALLOYS AND HAVING A PH OF FROM 7 TO 10, CONSISTING OF ESENTIALLY OF AN ALIKALI CYANIDE, AN ALKALI ORTHOPHOSPHATE, CUPROUS CYANIDE, STANNOUS PYROPHOSPHATE, A MATERIAL SELECTED FROM THE GROUP CONSISTIG OF GLUE, GELATIN, AND HYDROLYSIS PRODUCTS THEEOF, AN EXCESS OF ALKALI PYROPHOSPHATE, AND WATER.
References Cited (Backward Citations)
US1536859A
Cited
US1970548A
Cited
US1970549A
Cited
US2079842A
Cited
US2216605A
Cited
US2511395A
Cited
US2397522A
Cited
US2468825A
Cited
US2436316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |