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US4654477A
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Electric conductor
Assignee: Nippon Light Metal Co Ltd
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Filing: 1984-11-30
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Granted: 1987-03-31
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Expires: 2004-11-30
Abstract
Abstract The electric conductor comprises at least three kinds of element wires which are electrically connected with each other at least at their both ends, and the electric conductor performs a superior signal transmission characteristics for audio signal and so on.
Inventors
- 👤 Yukitomo Isoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:10
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/0009; H01B5/00; H01B5/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
86 words
Electric signal transmission conductor comprising; a bundle of plural electric signal transmission element wires having at least three different kinds of frequency characteristics with regard to an electric signal transmission, said plural electric signal transmission element wires being of at least one substance selected from the group consisting of non-ferrous material or materials and electrically conductive non-metallic material or materials, and said element wires being electrically connected with each other at least at opposite ends to form one electric signal transmission path therealong between said ends.
Claim 2
Dependent Claim
86 words
Electric signal transmission conductor comprising; a bundle of plural electric signal transmission element wires having at least three different kinds of frequency characteristics with regard to an electric signal transmission, said plural electric signal transmission element wires being of at least one substance selected from the group consisting of non-ferrous material or materials and electrically conductive non-metallic material or materials, and said element wires being electrically connected with each other at least at opposite ends to form one electric signal transmission path therealong between said ends.
Claim 3
Dependent Claim
35 words
Electric signal transmission conductor in accordance with claim 1, wherein said element wires are selected from the group consisting of at least lead element wires, aluminum element wire, copper element wire and brass element wire.
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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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |