US3595760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of aluminium
Assignee: Nippon Steel Nisshin Co Ltd
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Filing: 1968-03-20
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Granted: 1971-07-27
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Expires: 1988-03-20
Abstract
Abstract THE PRESENT INVENTION RELATES TO THE IMPROVEMENTS OF THE ELECTRODEPOSITION OF ALUMINIUM AND CHARACTERISED BY USING A BATH COMPRISING, AS A SOLVENT, AT LEAST ONE MEMBER FROM THE GROUP CONSISTING OF TETRAHYDROFURAN AND ITS DERIVATIVES AND, AS SOLUTES, (A) AN ALUMINUM HALIDE AND (B) AT LEAST ONE OF LITHIUM ALUMINIUM HYDRIDE AND LITHIUM HYDRIDE, IN WHICH THE MOLAR RATIO OF THE SOLUTES IS 1 TO 3. ONE OR MORE AROMATIC COMPOUNDS SUCH AS BENZENE TOGETHER WITH A CHAIN ETHER MAY BE ADDED TO SAID BATH. ACCORDING TO THE PRESENT INVENTION, SMOOTH, HIGH DENSITY, DUCTILE AND COHERENT ALUMINIUM FILM CAN BE DEPOSITED ON THE CATHODE BODY.
Inventors
- 👤 Nobuhiko Ishibashi
- 👤 Masaki Yoshio
- 👤 Yoshimi Hanamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:34
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/22; C25D; C25D3/00; C25D3/02; C25D3/42; C25D3/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
ONE OR MORE AROMATIC COMPOUNDS SUCH AS BENZENE TOGETHER WITH A CHAIN ETHER MAY BE ADDED TO SAID BATH. ACCORDING TO THE PRESENT INVENTION, SMOOTH, HIGH DENSITY, DUCTILE AND COHERENT ALUMINIUM FILM CAN BE DEPOSITED ON THE CATHODE BODY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |