US3936591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonmetallic-sheathed cable
Assignee: Ericsson Inc
•
Filing: 1974-07-05
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Granted: 1976-02-03
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Expires: 1994-07-05
Abstract
Abstract Nonmetallic-sheathed cable is insulated and jacketed with expanded polyvinyl chloride comprising 8-24%, by volume, of gas.
Inventors
- 👤 Lambert C. Smith
- 👤 Verne A. Meridith
- 👤 Robert M. Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:31
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/185; H01B7/02; H01B7/0233; H01B7/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
66 words
A nonmetallic-sheathed cable comprising A. a plurality of conductors comprising a metal selected from the group consisting of copper and aluminum, B. a wall of expanded polyvinyl chloride insulation surrounding each of said conductors, said wall comprising 8-24%, by volume, of gas, C. a thin-walled tubular jacket of expanded polyvinyl chloride surrounding the totality of said insulated conductors said jacket comprising 8-24%, by volume, of gas.
Claim 2
Dependent Claim
66 words
A nonmetallic-sheathed cable comprising A. a plurality of conductors comprising a metal selected from the group consisting of copper and aluminum, B. a wall of expanded polyvinyl chloride insulation surrounding each of said conductors, said wall comprising 8-24%, by volume, of gas, C. a thin-walled tubular jacket of expanded polyvinyl chloride surrounding the totality of said insulated conductors said jacket comprising 8-24%, by volume, of gas.
Claim 3
Dependent Claim
15 words
The cable of claim 1 comprising a total of two insulated conductors, positioned in parallel.
Claim 4
Dependent Claim
15 words
The cable of claim 2 further comprising an uninsulated grounding wire positioned between said conductors.
Claim 5
Dependent Claim
19 words
The cable of claim 1 wherein the size of said conductors is between the sizes of Nos. 14-2 Awg.
Claim 6
Dependent Claim
16 words
The cable of claim 1 comprising a total three insulated conductors, said conductors being twisted together.
Claim 7
Dependent Claim
15 words
The cable of claim 5 further comprising an uninsulated grounding wire surrounded by said jacket.
References Cited (Backward Citations)
US2973552A
Cited
US3013109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |