Patent US4139677A successfully refreshed from Google Patents.
Patent US3617449A successfully refreshed from Google Patents.
US3617449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic deposition
Assignee: NAT RES DEV
•
Filing: 1968-05-15
•
Granted: 1971-11-02
•
Expires: 1988-05-15
Abstract
Abstract An electrolytic deposition process suitable for use where high deposition rates are required. A metallic powder which reacts with discharged anions is dispersed in the electrolyte adjacent the anode but is prevented from occurring in appreciable concentration in the electrolyte adjacent the cathode. The electrolyte may be arranged to flow continuously over the cathode surface. Specific conditions are disclosed for carrying out the process when depositing nickel, and an apparatus is described for utilizing the process in the electroforming of metallic articles.
Inventors
- 👤 Maurice Eric Giles
- 👤 John George Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:21
CPC Classifications
C; C25; C25D; C25D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A process according to claim 1 in which the particles are of nickel and the electrolyte is a nickel fluoroborate solution.
Claim 2
Dependent Claim
38 words
A method of manufacturing a metallic article, comprising forming a metallic deposit on a former by a process according to claim 1, and then separating the deposit from the former in a coherent form to constitute the article.
References Cited (Backward Citations)
US82877A
Cited
CA763941A
Cited
CA765384A
Cited
US868769A
Cited
US1395827A
Cited
US2104812A
Cited
US2872406A
Cited
US3135674A
Cited
US3251764A
Cited
US3223611A
Cited
US3300396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |