US2965551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal plating process
Assignee: Pechiney SA
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Filing: 1957-08-07
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Granted: 1960-12-20
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Expires: 1977-08-07
Abstract
No abstract record available.
Inventors
- 👤 Richaud Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/1803; C23C18/1824; C23C18/1837; C23C18/1844; C23C18/1848; C23C18/31; C23C18/32; C23C18/34; C23C18/36; C25D11/00; C25D11/02; C23C18/1806; Y; Y10; Y10S; Y10S205/00; Y10S205/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR COATING A METAL SURFACE WITH NICKEL, COMPRISING THE STEPS OF (A) DECREASING AND CLEANING THE SURFACE IN A CONVENTIONAL MANNER, AND (B) SUBJECTING THE CLEANED SURFACE TO ELECTROLYTIC OXIDATION IN A BATH CAPABLE OF PROVIDING AN OXIDIZING ENVIRONMENT AT THE ANODE, SAID BATH CONTAINING AT LEAST ONE COMPOUND OF NICKEL AND AT LEAST ONE REDUCING AGENT BEING A MINERAL SALT SELECTED FROM THE GROUP CONSISTING OF SULFITES, THIOSULFATES, HYDROSULFITES, ARSENITES, PHOSPHITES, AND HYPOPHOSPHITES, AND (C) COATING THE OXIDIC LAYER THUS FORMED ON SAID SURFACE IN COATING BATH WITH A COVER LAYER OF NICKEL.
Claim 2
Dependent Claim
96 words
A PROCESS FOR COATING A METAL SURFACE WITH NICKEL, COMPRISING THE STEPS OF (A) DECREASING AND CLEANING THE SURFACE IN A CONVENTIONAL MANNER, AND (B) SUBJECTING THE CLEANED SURFACE TO ELECTROLYTIC OXIDATION IN A BATH CAPABLE OF PROVIDING AN OXIDIZING ENVIRONMENT AT THE ANODE, SAID BATH CONTAINING AT LEAST ONE COMPOUND OF NICKEL AND AT LEAST ONE REDUCING AGENT BEING A MINERAL SALT SELECTED FROM THE GROUP CONSISTING OF SULFITES, THIOSULFATES, HYDROSULFITES, ARSENITES, PHOSPHITES, AND HYPOPHOSPHITES, AND (C) COATING THE OXIDIC LAYER THUS FORMED ON SAID SURFACE IN COATING BATH WITH A COVER LAYER OF NICKEL.
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |