US2849353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright nickel plating
Assignee: Hanson Van Winkle Munning Co
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Filing: 1955-02-08
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Granted: 1958-08-26
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Expires: 1975-02-08
Abstract
No abstract record available.
Inventors
- 👤 Kardos Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR PRODUCING BRIGHT NICKEL DEPOSITS WHICH COMPRISES ELECTRODEPOSITING NICKEL FROM AN AQUEOUS ACIDIC SOLUTION OF AT LEAST ONE NICKEL SALT IN WHICH THERE IS DISSOLVED FROM ABOUT 0.05 TO ABOUT 1.5 GRAMS PER LITER OF 2 BUTENE-1,4-DIOL AND FROM ABOUT 1/2 TO ABOUT 75 GRAMS PER LITER OF A WATER-SOLUBLE SULFO-OXYGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONONUCLEAR AND BINUCLEAR AROMATIC SULFONIC ACIDS, HETEROCYCLIC SULFONIC ACIDS, MONONUCLEAR AROMATIC SULFINIC ACIDS, ALKALI METAL, AMMONIUM, MAGNESIUM AND NICKEL SALTS ACIDS, AND MONONUCLEAR AROMATIC SULFONAMIDES AND IMIDES.
Claim 2
Dependent Claim
87 words
A PROCESS FOR PRODUCING BRIGHT NICKEL DEPOSITS WHICH COMPRISES ELECTRODEPOSITING NICKEL FROM AN AQUEOUS ACIDIC SOLUTION OF AT LEAST ONE NICKEL SALT IN WHICH THERE IS DISSOLVED FROM ABOUT 0.05 TO ABOUT 1.5 GRAMS PER LITER OF 2 BUTENE-1,4-DIOL AND FROM ABOUT 1/2 TO ABOUT 75 GRAMS PER LITER OF A WATER-SOLUBLE SULFO-OXYGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONONUCLEAR AND BINUCLEAR AROMATIC SULFONIC ACIDS, HETEROCYCLIC SULFONIC ACIDS, MONONUCLEAR AROMATIC SULFINIC ACIDS, ALKALI METAL, AMMONIUM, MAGNESIUM AND NICKEL SALTS ACIDS, AND MONONUCLEAR AROMATIC SULFONAMIDES AND IMIDES.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |