Patent US1458642A successfully refreshed from Google Patents.
Patent US2732336A successfully refreshed from Google Patents.
US2732336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating composition for copper
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:50
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38; C25D3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ELECTROLYTIC BATH COMPRISING AN AQUEOUS ALKALINE SOLUTION OF A CYANIDE OF COPPER, SOLUBLE SELENIUM COMPOUND TAKEN FROM THE CLASS CONSISTING OF SELENIDES, SELENOUREAS, SELENOCYANATES, SELENITES, SELENATES, AND COMPOUNDS OF THE FORMULA RSEH WHEREIN R IS AN ORGANIC RADICAL TAKEN FROM THE CLASS CONSITING OF ALKYL RADICALS OF 1 TO 6 CARBON ATOMS AND ARYL RADICALS OF 6 TO 12 CARBON ATOMS SAID SELENIUM COMPOUND BEING PRESENT IN AN AMOUNT FROM .0001 TO 5 GRAMS PER LITER, TOGETHER WITH A SOLUBLE COMPOUND OF A METAL TAKEN FROM THE CLASS CONSISTING OF LEAD AND ANTIMONY IN WHICH THE METAL IS PRESENT IN AN AMOUNT FROM .001 TO 5 GRAMS PER LITER.
Claim 2
Dependent Claim
110 words
AN ELECTROLYTIC BATH COMPRISING AN AQUEOUS ALKALINE SOLUTION OF A CYANIDE OF COPPER, SOLUBLE SELENIUM COMPOUND TAKEN FROM THE CLASS CONSISTING OF SELENIDES, SELENOUREAS, SELENOCYANATES, SELENITES, SELENATES, AND COMPOUNDS OF THE FORMULA RSEH WHEREIN R IS AN ORGANIC RADICAL TAKEN FROM THE CLASS CONSITING OF ALKYL RADICALS OF 1 TO 6 CARBON ATOMS AND ARYL RADICALS OF 6 TO 12 CARBON ATOMS SAID SELENIUM COMPOUND BEING PRESENT IN AN AMOUNT FROM .0001 TO 5 GRAMS PER LITER, TOGETHER WITH A SOLUBLE COMPOUND OF A METAL TAKEN FROM THE CLASS CONSISTING OF LEAD AND ANTIMONY IN WHICH THE METAL IS PRESENT IN AN AMOUNT FROM .001 TO 5 GRAMS PER LITER.
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |