US3290234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of palladium
Assignee: Technic Inc
•
Filing: 1963-10-29
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Granted: 1966-12-06
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Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Edward A Parker
- 👤 Alfred M Weisberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:42
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/50; C25D3/52
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A METHOD OF ELECTRO-PLATING PALLADIUM TO FORM HEAVY, CLEAN, STRESS-FREE, BRIGHT PLATES WHICH COMPRISES PROVIDING AN AQUEOUS SOLUTION OF PALLADIUM IN THE FORM OF A CHELATE STABLE UNDER PLATING CONDITIONS, THE SAID CHELATE CONSISTING ESSENTIALLY OF PALLADIUM CHELATES OF CYCLIC ALIPHATIC N,N1-DIAMINE TERAACETIC COMPOUNDS IN THE PRESENCE OF ANIONS IN SAID SOLUTION SUITABLE FOR PRECIPITATING CONTAMINATING METALS BUT INSUFFICIENT TO PRECIPITATE THE PALLADIUM, SAID SOLUTION BEING MAINTAINED AT A PH IN THE RANGE FROM 4-12, AND PASSING AN ELECTRIC CURRENT THROUGH SAID SOLUTION FROM AN ANODE TO A CATHODE TO BE COATED.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |