Patent US3030282A successfully refreshed from Google Patents.
US3030282A
Expired / Lapsed
US
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Electrodeposition of copper
Assignee: Primerica Inc
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Filing: 1961-05-02
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Granted: 1962-04-17
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Passal Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:42
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/24; C; C25; C25D; C25D3/00; C25D3/02; C25D3/38; C25D3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
AN IMPROVED ALKALINE-CYANIDE BATH FOR COPPER PLATING WHICH COMPRISES COPPER CYANIDE, FREE CYANIDE, AND BETWEEN 0.025 G/L. AND 0.5 G/L, OF AT LEAST ONE POLYETHOXLATED QUARTERNARY COMPOUND HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
31 words
AN IMPROVED ALKALINE-CYANIDE BATH FOR COPPER PLATING WHICH COMPRISES COPPER CYANIDE, FREE CYANIDE, AND BETWEEN 0.025 G/L. AND 0.5 G/L, OF AT LEAST ONE POLYETHOXLATED QUARTERNARY COMPOUND HAVING THE FOLLOWING FORMULA:
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |