US3930962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producing thin copper foils on a molybdenum or tzm alloy drum
Assignee: Kennecott Utah Copper LLC
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Filing: 1975-02-21
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Granted: 1976-01-06
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Expires: 1995-02-21
Abstract
Abstract A process and apparatus for producing thin copper foils by electroplating the copper onto a rotating drum serving as a cathode where the surface of the rotating drum is molybdenum or TZM alloy.
Inventors
- 👤 Glenn M. Cook
- 👤 Walter E. Galin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:11
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
22 words
In a process for preparing thin copper foils, the improvement comprising, electrodepositing the copper on a rotating electrode having a molybdenum surface.
Claim 2
Dependent Claim
22 words
In a process for preparing thin copper foils, the improvement comprising, electrodepositing the copper on a rotating electrode having a molybdenum surface.
Claim 3
Dependent Claim
28 words
In a process for preparing thin copper foils, the improvement comprising electrodepositing the copper on a rotating electrode having a surface formed from a titanium, zirconium, molybdenum alloy.
Claim 4
Dependent Claim
28 words
In a process for preparing thin copper foils, the improvement comprising electrodepositing the copper on a rotating electrode having a surface formed from a titanium, zirconium, molybdenum alloy.
Claim 5
Dependent Claim
42 words
A process in accordance with claim 1 wherein the copper is plated from a soluble anode in a plating solution of proportions 240 grams CuSO 4 .5H 2 O, 60 grams H 2 SO 4 and 1 liter of H 2 O.
Claim 6
Dependent Claim
32 words
A process in accordance with claim 1 wherein the copper is plated from a soluble anode in a plating solution consisting of cupric fluorobate, fluoboric acid and boric acid in distilled water.
Claim 7
Dependent Claim
29 words
A process in accordance with claim 4 wherein the plating solution proportions are: 2.05 M cupric fluoborate, 0.44 M fluoborate acid and 1.05 M boric acid in distilled water.
Claim 8
Dependent Claim
53 words
Apparatus for the electrolytic production of copper foil comprising, an electrolyte tank, a copper anode having at least a portion of its surface within said electrolyte tank, a rotatable drum having a portion of its surface disposed within said tank, said rotatable drum having a molybdenum surface and means to rotate said drum.
Claim 9
Dependent Claim
53 words
Apparatus for the electrolytic production of copper foil comprising, an electrolyte tank, a copper anode having at least a portion of its surface within said electrolyte tank, a rotatable drum having a portion of its surface disposed within said tank, said rotatable drum having a molybdenum surface and means to rotate said drum.
Claim 10
Dependent Claim
19 words
Apparatus in accordance with claim 6 wherein said rotatable drum has a surface formed of titanium, zirconium, molybdenum alloy.
References Cited (Backward Citations)
US3461046A
Cited
US3677906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |