US2905601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating bright gold
Assignee: Sel Rex Corp
•
Filing: 1957-08-13
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Granted: 1959-09-22
•
Expires: 1977-08-13
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Rinker
- 👤 Duva Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:01
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/48; C25D3/56; C25D3/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF ELECTRODEPOSITING BRIGHT GOLD WHICH COMPRISES ELECTROLYZING A SOLUTION CONSISTING OF 10-150 G./LITER OF A WEAK, STABLE ORGANIC CONSISTING OF 10-150 TRALIZED WITH ALKALI TO PROVIDE A PH OF 3-5, 1-15 G./LITER OF GOLD ADDED AS A GOLD CYANIDE, AND 1-50G./LITER OF AT LEAST ONE SOLUBLE BASE SALT.
Claim 2
Independent Claim
50 words
A METHOD OF ELECTRODEPOSITING BRIGHT GOLD WHICH COMPRISES ELECTROLYZING A SOLUTION CONSISTING OF 10-150 G./LITER OF A WEAK, STABLE ORGANIC CONSISTING OF 10-150 TRALIZED WITH ALKALI TO PROVIDE A PH OF 3-5, 1-15 G./LITER OF GOLD ADDED AS A GOLD CYANIDE, AND 1-50G./LITER OF AT LEAST ONE SOLUBLE BASE SALT.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |