Patent US2605898A successfully refreshed from Google Patents.
US2621152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc cyanide plating bath
Assignee: Allied Res Products Inc
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Filing: 1950-03-30
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Granted: 1952-12-09
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Expires: 1970-03-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:31
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AS AN ADDED COMPONENT FOR A ZINC CYANIDE PLATING BATH, AN AQUEOUS SOLUTION CONTAINING THE REACTION PRODUCT OBTAINED BY HEATING TOGETHER IN AQUEOUS SOLUTION FROM 10 TO 30 GRAMS OF AMMONIUM THIOCYANATE, FROM 10 TO 30 GRAMS OF DICYANDIAMIDE, FROM 4 TO 15 GRAMS OF SODIUM HYDROXIDE, AND FROM 40 TO 100 GRAMS OF FORMALDEHYDE.
Claim 2
Dependent Claim
55 words
AS AN ADDED COMPONENT FOR A ZINC CYANIDE PLATING BATH, AN AQUEOUS SOLUTION CONTAINING THE REACTION PRODUCT OBTAINED BY HEATING TOGETHER IN AQUEOUS SOLUTION FROM 10 TO 30 GRAMS OF AMMONIUM THIOCYANATE, FROM 10 TO 30 GRAMS OF DICYANDIAMIDE, FROM 4 TO 15 GRAMS OF SODIUM HYDROXIDE, AND FROM 40 TO 100 GRAMS OF FORMALDEHYDE.
References Cited (Backward Citations)
US2101580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |