US2740754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc plating brightener
Assignee: Allied Res Products Inc
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Filing: 1952-11-07
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Granted: 1956-04-03
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Expires: 1972-11-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:49
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A PROCESS FOR THE ELECTRODEPOSITION OF ZINC, THE STEP COMPRISING DEPOSITION ZINC FROM A CYANIDE-ZINC PLATING BATH CONTAINING FROM 0.001 TO 0.0035% BY DRY WEIGHT OF AN AQUEOUS ADDITIVE SOLUTION COMPRISING WATER, 44 TO 60% BY WEIGHT OF ANISIC ALDEHYDE BISULFITE, 10 TO 24% BY WEIGHT OF GROUND GLUE, 8 TO 12% BY WEIGHT OF POLYVINYL ALCOHOL AND 8 TO 20% BY WEIGHT OF SODIUM LIGNIN SULFONATE SAID PERCENTS BY WEIGHT OF ANISIC ALDEHYDE BISULFITE, GROUND GLUE, POLYVINYL ALCOHOL AND SODIUM LIGNIN SULDONATE BEING ON A DRY BASIS.
Claim 2
Dependent Claim
89 words
IN A PROCESS FOR THE ELECTRODEPOSITION OF ZINC, THE STEP COMPRISING DEPOSITION ZINC FROM A CYANIDE-ZINC PLATING BATH CONTAINING FROM 0.001 TO 0.0035% BY DRY WEIGHT OF AN AQUEOUS ADDITIVE SOLUTION COMPRISING WATER, 44 TO 60% BY WEIGHT OF ANISIC ALDEHYDE BISULFITE, 10 TO 24% BY WEIGHT OF GROUND GLUE, 8 TO 12% BY WEIGHT OF POLYVINYL ALCOHOL AND 8 TO 20% BY WEIGHT OF SODIUM LIGNIN SULFONATE SAID PERCENTS BY WEIGHT OF ANISIC ALDEHYDE BISULFITE, GROUND GLUE, POLYVINYL ALCOHOL AND SODIUM LIGNIN SULDONATE BEING ON A DRY BASIS.
References Cited (Backward Citations)
US2171842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |