US3830710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masked electrode structure and process for electrolytic deposition of metals
Assignee: Huntington Alloys Corp
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Filing: 1972-07-12
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Granted: 1974-08-20
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Expires: 1992-07-12
Abstract
Abstract THE INVENTION IS DIRECTED TO THE ELECTROLYTIC DEPOSITION OF METALS AND PARTICULARLY TO A NOVEL MASKED CATHODE STRUCTURE UPON WHICH METAL IS DEPOSITED. THE MASK COMPRISES A REMOVABLE, SHRINK-FITTED, CORROSION RESISTANT, INSULATING MEMBER WHICH ENVELOPS THE VERTICAL SIDE EDGES OF THE CATHODE AND SUBSTANTIALLY SEALS SAID VERTICAL EDGES FROM CONTACT WITH THE ELECTROLYTE. RETAINING SURFACES ON THE VERTICAL CATHODE EDGES MATE AND LOCK ON TO COMPLEMENTARY SURFACES WITHIN THE MASKS. THE BOTTOM EDGE OF THE CATHODE IS PROVIDED WITH A V-SHAPED GROOVE WHEREBY A PLANE OF WEAKNESS IS FORMED IN THE ELECTRODEPOSIT AT THAT POINT.
Inventors
- 👤 J Narozanski
- 👤 C Dunkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:37
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/02
Claims Analysis
Total Claims: 0
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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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |