US2801959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline antimony plating
Assignee: Harshaw Chemical Co
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Filing: 1953-12-03
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Granted: 1957-08-06
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Expires: 1973-12-03
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:34
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN ALKALINE ANTIMONY ELECTROPLATING SOLUTION COMPRISING, IN ADDITION TO WATER, ANTIMONYL COMPLEX MATERIAL SELECTED FROM THE CLASS CONSISTING OF SODIUM ANTIMONY TARTRATE, SODIUM ANTIMONYL GLUCONATE AND MIXTURES THEREOF, THE SODIUM SALT OF A HYDROXY ACID OF THE CLASS CONSISTING OF TARTARIC ACID AND GLUCONIC ACID, AND SODIUM HIGH DROXIDE, THE CONTRATION OF ANTIMONY (SB) BEING FROM 20 TO 90 GRAMS PER LITER, AND THE RATIO OF GRAM EQUIVALENT WEIGHTS OF ALPHA HYDROXYL TO THE GRAM ATOMIC WEIGHTS OF ANTIMONY BEING FROM 4:1 TO 8:1, AND THE CONCENTRATION OF SODIUM HYDROXIDE BEING SUFFICIENT TO PRODUCE A PH VALUE FROM 8.5 TO 13.0.
Claim 2
Dependent Claim
101 words
AN ALKALINE ANTIMONY ELECTROPLATING SOLUTION COMPRISING, IN ADDITION TO WATER, ANTIMONYL COMPLEX MATERIAL SELECTED FROM THE CLASS CONSISTING OF SODIUM ANTIMONY TARTRATE, SODIUM ANTIMONYL GLUCONATE AND MIXTURES THEREOF, THE SODIUM SALT OF A HYDROXY ACID OF THE CLASS CONSISTING OF TARTARIC ACID AND GLUCONIC ACID, AND SODIUM HIGH DROXIDE, THE CONTRATION OF ANTIMONY (SB) BEING FROM 20 TO 90 GRAMS PER LITER, AND THE RATIO OF GRAM EQUIVALENT WEIGHTS OF ALPHA HYDROXYL TO THE GRAM ATOMIC WEIGHTS OF ANTIMONY BEING FROM 4:1 TO 8:1, AND THE CONCENTRATION OF SODIUM HYDROXIDE BEING SUFFICIENT TO PRODUCE A PH VALUE FROM 8.5 TO 13.0.
References Cited (Backward Citations)
US2711010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |