Patent US2990344A successfully refreshed from Google Patents.
US2990344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cadmium electroplating and plating baths therefor
Assignee: Individual
•
Filing: 1958-12-31
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Granted: 1961-06-27
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Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Peppino N Vlannes
- 👤 Simon W Strauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:08
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN THE ELECTRODEPOSITION OF CADMIUM, THE IMPROVEMENT WHICH COMPRISES ELECTRODEPOSITING CADMIUM FROM A NON-CYANIDE AQUEOUS BATH CONSISTING ESSENTIALLY OF A SOLUTION IN WATER OF A CADMIUM SALT OF A CONCENTRATION OF FROM ABOUT 0.5 TO 2 MOLAR TO WHICH TRIETHANOLAMINE HAS BEEN ADDED IN AMOUNT SUCH THAT THE MOLAR RATIO OF TRIETHANOLAMINE TO CADMIUM IS FROM ABOUT 1:1 TO 4:1 AND THE PH OF THE BATH IS IN THE RANGE OF FROM ABOVE 7 TO ABOUT 10.
Claim 2
Dependent Claim
77 words
IN THE ELECTRODEPOSITION OF CADMIUM, THE IMPROVEMENT WHICH COMPRISES ELECTRODEPOSITING CADMIUM FROM A NON-CYANIDE AQUEOUS BATH CONSISTING ESSENTIALLY OF A SOLUTION IN WATER OF A CADMIUM SALT OF A CONCENTRATION OF FROM ABOUT 0.5 TO 2 MOLAR TO WHICH TRIETHANOLAMINE HAS BEEN ADDED IN AMOUNT SUCH THAT THE MOLAR RATIO OF TRIETHANOLAMINE TO CADMIUM IS FROM ABOUT 1:1 TO 4:1 AND THE PH OF THE BATH IS IN THE RANGE OF FROM ABOVE 7 TO ABOUT 10.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |