US2635076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright nickel plating
Assignee: Harshaw Chemical Co
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Filing: 1947-01-29
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Granted: 1953-04-14
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:07
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12; C25D3/14; C25D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A NICKEL PLATING SOLUTION ESSENTIALLY CONSISTING OF AN AQUEOUS, ACID SOLUTION OF NICKEL MATERIAL SUPPLYING NICKEL IONS AND AN ADDITION AGENT DISSOLVED IN SAID SOLUTION AND CAPABLE OF IMPARTING TO ELECTRODEPOSITS PRODUCED THEREIN IMPROVED SMOOTHNESS AND BUFFABILITY, SAID SOLUTION ESSENTIALY CONSISTING OF A COMPOSITION OF THE CLASS CONSISTING OF AQUEOUS SOLUTIONS OF NICKEL SULFATE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE, CHLORIDE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE AND NICKEL SULFATE AND AQUEOUS SOLUTIONS OF NICKEL SULFAMATE AND SAID ADDITION AGENT BEING SELECTED FROM THE CLASS CONSISTING OF COUMARIN AND ITS SUBSTITUTION PRODUCTS WHEREIN A SUBSTITUENT OF THE CLASS CONSISTING OF ALKYL RADICALS CONTAINING NOT MORE THAN FOUR CARBON ATOMS, ACYL RADICALS CONTAINING NOT MORE THAN FOUR CARBON ATOMS, ANC CHLORINE, HYDROXYL AND CARBOXYL GROUPS REPLACES A HYDROGEN ATOMS OF THE COUMARIN, SUCH ADDITION AGENT BEING 0.05 GRAM PER LITER TO SATURATION.
Claim 2
Dependent Claim
144 words
A NICKEL PLATING SOLUTION ESSENTIALLY CONSISTING OF AN AQUEOUS, ACID SOLUTION OF NICKEL MATERIAL SUPPLYING NICKEL IONS AND AN ADDITION AGENT DISSOLVED IN SAID SOLUTION AND CAPABLE OF IMPARTING TO ELECTRODEPOSITS PRODUCED THEREIN IMPROVED SMOOTHNESS AND BUFFABILITY, SAID SOLUTION ESSENTIALY CONSISTING OF A COMPOSITION OF THE CLASS CONSISTING OF AQUEOUS SOLUTIONS OF NICKEL SULFATE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE, CHLORIDE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE, AQUEOUS SOLUTIONS OF NICKEL FLUOBORATE AND NICKEL SULFATE AND AQUEOUS SOLUTIONS OF NICKEL SULFAMATE AND SAID ADDITION AGENT BEING SELECTED FROM THE CLASS CONSISTING OF COUMARIN AND ITS SUBSTITUTION PRODUCTS WHEREIN A SUBSTITUENT OF THE CLASS CONSISTING OF ALKYL RADICALS CONTAINING NOT MORE THAN FOUR CARBON ATOMS, ACYL RADICALS CONTAINING NOT MORE THAN FOUR CARBON ATOMS, ANC CHLORINE, HYDROXYL AND CARBOXYL GROUPS REPLACES A HYDROGEN ATOMS OF THE COUMARIN, SUCH ADDITION AGENT BEING 0.05 GRAM PER LITER TO SATURATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |