US2887442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the electrolytic deposition of copper
Assignee: METALLIC INDUSTRY NV
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Filing: 1956-11-20
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Granted: 1959-05-19
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Expires: 1976-11-20
Abstract
No abstract record available.
Inventors
- 👤 Hendricus A Van Oosterhout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR THE ELECTROLYTIC DEPOSITION OF COPPER, WHICH COMPRISES ELECTROLYZING AN AQUEOUS SOLUTION CONTAINING AN ACIDE COPPER SALT, AT LEAST ONE MOL PER LITER OF A DIAMINE WITH A BOILING POINT BETWEEN ABOUT 100* C. AND 150* C. AT ATMOSPHERIC PRESSURE AND A SATURATED ALIPHATIC MONOAMINO CARBOXYLIC ACID SUFFICIENT IN AMOUNT TO COMPLEX THE COPPER, THE DECOMPOSITION CONSTANT OF THE COMPLEX BEING GREATER THAN THAT OF THE COMPLEX OF THE COPPER WITH THE DIAMINE USED.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE ELECTROLYTIC DEPOSITION OF COPPER, WHICH COMPRISES ELECTROLYZING AN AQUEOUS SOLUTION CONTAINING AN ACIDE COPPER SALT, AT LEAST ONE MOL PER LITER OF A DIAMINE WITH A BOILING POINT BETWEEN ABOUT 100* C. AND 150* C. AT ATMOSPHERIC PRESSURE AND A SATURATED ALIPHATIC MONOAMINO CARBOXYLIC ACID SUFFICIENT IN AMOUNT TO COMPLEX THE COPPER, THE DECOMPOSITION CONSTANT OF THE COMPLEX BEING GREATER THAN THAT OF THE COMPLEX OF THE COPPER WITH THE DIAMINE USED.
References Cited (Backward Citations)
US2355070A
Cited
US2195454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |