US2686859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating
Assignee: AT&T Inc
•
Filing: 1950-10-11
•
Granted: 1954-08-17
•
Expires: 1970-10-11
Abstract
No abstract record available.
Inventors
- 👤 Alvin N Gray
- 👤 Guy E Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:14
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0607; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF MAKING AN ELECTRICAL CONDUCTOR HAVING A STEEL CORE COVERED WITH A HIGHLY CONDUCTIVE LAYER OF COPPER, WHICH COMPRISES IMPRESSING A CATHODIC CHARGE UPON A MOVING STEEL WIRE, CONTINUOUSLY ADVANCING THE CATHODICALLY CHANGED WIRE LINGITUDINALLY THROUGH A SERIES OF ELECTROLYTIC CELLS CONTAINING COPPER-PLATING ELECTROLYTE TO SUCCESSIVELY PLATE A PLURALITY OF THIN LAYERS OF COPPER THEREON, THEN IMPRESSING AN ANODIC CHARGE UPON THE PLATED WIRE, CONTINUOUSLY ADVANCING THE ANODICALLY CHARGED WIRE THROUGH
Claim 2
Independent Claim
73 words
THE METHOD OF MAKING AN ELECTRICAL CONDUCTOR HAVING A STEEL CORE COVERED WITH A HIGHLY CONDUCTIVE LAYER OF COPPER, WHICH COMPRISES IMPRESSING A CATHODIC CHARGE UPON A MOVING STEEL WIRE, CONTINUOUSLY ADVANCING THE CATHODICALLY CHANGED WIRE LINGITUDINALLY THROUGH A SERIES OF ELECTROLYTIC CELLS CONTAINING COPPER-PLATING ELECTROLYTE TO SUCCESSIVELY PLATE A PLURALITY OF THIN LAYERS OF COPPER THEREON, THEN IMPRESSING AN ANODIC CHARGE UPON THE PLATED WIRE, CONTINUOUSLY ADVANCING THE ANODICALLY CHARGED WIRE THROUGH
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |