US3672969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of gold and gold alloys
Assignee: Shipley Co Inc
•
Filing: 1970-10-26
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Granted: 1972-06-27
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Expires: 1990-10-26
Abstract
Abstract ORGANO-PHOSPHORUS COMPOUNDS AND THEIR WATER SOLUBLE SALTS ARE INCORPORATED INTO AQUEOUS SOLUBLE CYANIDE GOLD OR GOLD ALLOY PLATING BATHS.
Inventors
- 👤 Fred I Nobel
- 👤 Barnet D Ostrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/48; C25D3/56; C25D3/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |