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US2689399A
Expired / Lapsed
US
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Plated article and method of making it
Assignee: AT&T Inc
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Filing: 1950-12-05
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Granted: 1954-09-21
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Expires: 1970-12-05
Abstract
No abstract record available.
Inventors
- 👤 Alvin N Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:37
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12701; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A COMPOSITE ELECTRICAL CONDUCTOR, CONSISTING ESSENTIALLY OF A HIGH TENSILE STRENGHT STEEL CORE, A CORROSION PROTECTIVE THIN INNER LAYER OF ZINC COVERING THE STEEL CORE, AN INTERMEDIATE THIN BARRIER LAYER OF LEAD COVERING THE ZINC LAYER, AND AN ELECTRODEPOSITED OUTER CONDUCTIVE LAYER OF COPPER COVERING THE LEAD LAYER AND HAVING A THICKNESS OF ABOUT ONE-EIGHT OF THE RADIUS OF THE COMPOSITE CONDUCTOR.
Claim 2
Dependent Claim
62 words
A COMPOSITE ELECTRICAL CONDUCTOR, CONSISTING ESSENTIALLY OF A HIGH TENSILE STRENGHT STEEL CORE, A CORROSION PROTECTIVE THIN INNER LAYER OF ZINC COVERING THE STEEL CORE, AN INTERMEDIATE THIN BARRIER LAYER OF LEAD COVERING THE ZINC LAYER, AND AN ELECTRODEPOSITED OUTER CONDUCTIVE LAYER OF COPPER COVERING THE LEAD LAYER AND HAVING A THICKNESS OF ABOUT ONE-EIGHT OF THE RADIUS OF THE COMPOSITE CONDUCTOR.
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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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |