Patent US2876178A successfully refreshed from Google Patents.
US2876178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodepositing copper
Assignee: Individual
•
Filing: 1956-03-06
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Granted: 1959-03-03
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Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Ewald H Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:53
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38; C25D3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN A PROCESS FOR ELECTRODEPOSITING COPPER FROM A COPPER CYANIDE SOULATION, THE STEP OF ADDING AT LEAST .001 G/L. OF A METAL SELECTED FROM THE GROUPE CONSISTING OF COBALT AND NICKLE, AND AT LEAST. 05 G/L. OF A COMPOUND SELECTED FROM THE GROUPE CONSISTING OF 2,4-LUTIDINE AND 2,6-LUTIDINE.
Claim 2
Dependent Claim
48 words
IN A PROCESS FOR ELECTRODEPOSITING COPPER FROM A COPPER CYANIDE SOULATION, THE STEP OF ADDING AT LEAST .001 G/L. OF A METAL SELECTED FROM THE GROUPE CONSISTING OF COBALT AND NICKLE, AND AT LEAST. 05 G/L. OF A COMPOUND SELECTED FROM THE GROUPE CONSISTING OF 2,4-LUTIDINE AND 2,6-LUTIDINE.
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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |