US3764489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of gold alloys
Assignee: Oxy Metal Finishing Corp
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Filing: 1972-03-27
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Granted: 1973-10-09
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Expires: 1992-03-27
Abstract
Abstract AN AQUEOUS GOLD ALLOY PLATING BATH FOR THE ELECTRODEPOSITION OF GOLD AND ONE OR MORE METALS SELECTED FROM GROUPS II-B THROUGH VI-B OF THE PERIODIC TABLE OF MENDELYEEV AND A METHOD FOR SAID CODEPOSITION. THE USE OF A SOLUBLE ANODE OF THE ALLOYING METAL IN THE CODEPOSITION OF GOLD WITH THAT METAL, ALONG WITH ONE OR MORE OTHER METALS FROM GROUPS II-B THROUGH VI-B IS DESCRIBED. THE PREFERRED ALLOY IS TIN-LEAD-GOLD.
Inventors
- 👤 P Antony
- 👤 F Zuntini
- 👤 A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; C07F9/3205; C07F9/3235; C07F9/66; C07F9/70; C07F9/74; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |