Patent US3667972A successfully refreshed from Google Patents.
US3667972A
Expired / Lapsed
US
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Chemical nickel plating baths
Assignee: Stauffer Chemical Co
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Filing: 1970-06-11
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Granted: 1972-06-06
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Expires: 1990-06-11
Abstract
Abstract ACIDIC ELECTGROLESS PLATING SOLUTION COMPRISING NICKEL IONS, HYPOPHOSPHITE IONS, AND AN ION OF THE GROUP OF SULFAMATE, FLUOBORATE AND MIXTURES THEREOF FOR IMPVOED SOLUTION STABILITY AND PROVIDING ELECTROLESS PLATES CHARACTERIZED BY LOWER INTERNAL STRESSES SO AS TO PROVIDE IMPROVED ADHESION. STABILITY IS FURTHER IMPROVED BY TGHE ADDITION OF GLYCOLATE IONS AND ACETATE IONS. BORIC ACID IS USED TO FURTHER IMPROVE CHARACTERISTICS OF THE PLATING BATH.
Inventors
- 👤 Miguel Coll-Palagos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C18/36; C23C18/1601; C23C18/1617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |