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Patent US2859159A successfully refreshed from Google Patents.
US2859159A
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Bright copper plating bath containing mixtures of metal compounds
Assignee: Elechem Corp
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Filing: 1956-10-09
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Granted: 1958-11-04
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Christian J Wernlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:11
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38; C25D3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN AQUEOUS BATH FOR ELECTRODEPOSITING BRIGHT COPPER CONTAINING ABOUT 5-20 OZ./GAL. OF COPPER CYANIDE, ABOUT 0.010-0.20 G./L. OF TRIVALENT ANITOMY SUPPLIED AS A SOLUBLE SALT THEREOF, AND A METAL CHOSEN, IN THE RESPECTIVE PROPORTIONS SPECIFIED, FROM THE GROUP CONSISTING OF: 0.0562.32 G./L. ZINC, /.ML/-7.60 G./L. OF ARSENIC, 0.003-0.32 G./L. OF COBALT, 0.088-0.40 G./L. OF IRON, AND 0.007-7,00 G./L. OF CADMIUM.
Claim 2
Dependent Claim
60 words
AN AQUEOUS BATH FOR ELECTRODEPOSITING BRIGHT COPPER CONTAINING ABOUT 5-20 OZ./GAL. OF COPPER CYANIDE, ABOUT 0.010-0.20 G./L. OF TRIVALENT ANITOMY SUPPLIED AS A SOLUBLE SALT THEREOF, AND A METAL CHOSEN, IN THE RESPECTIVE PROPORTIONS SPECIFIED, FROM THE GROUP CONSISTING OF: 0.0562.32 G./L. ZINC, /.ML/-7.60 G./L. OF ARSENIC, 0.003-0.32 G./L. OF COBALT, 0.088-0.40 G./L. OF IRON, AND 0.007-7,00 G./L. OF CADMIUM.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |