US3271508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication cable
Assignee: Ericsson Inc
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Filing: 1965-04-30
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Granted: 1966-09-06
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Burr Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
H; H01; H01B; H01B11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A COMMUNICATION CABLE COMPRISING A LARGE PLURALITY OF TWISTED PAIRS OF INSULATED CONDUCTORS, (A) ALL OF SAID PAIRS OF CONDUCTORS BEING TWISTED WITH THE SAME DIRECTION OF LAY, (B) EACH CONDUCTOR BEING INDIVIDUALLY WRAPPED WITH AN APPROXIMATELY DOUBLE LAYER OF SPIRALLED INSULATING TAPE HAVING A LENGTH OF WRAPPING LAY EQUAL TO THE LENGTH OF LAY OF TWIST OF THE PAIR COMPRISING SAID CONDUCTOR, (C) THE DIRECTION OF SPIRAL OF THE TAPE ON ALL CONDUCTORS IN SAID CABLE BEING THE SAME, (D) SAID PAIRS BEING CABLE TOGETHER IN A HELIX HAVING A LENGTH OF LAY EXCEEDING THE LENGTH OF LAY OF ANY OF THE COMPONENT PAIR TWISTS, AND (E) A SHEATH SURROUNDING SAID CABLED CONDUCTORS.
Claim 2
Dependent Claim
114 words
A COMMUNICATION CABLE COMPRISING A LARGE PLURALITY OF TWISTED PAIRS OF INSULATED CONDUCTORS, (A) ALL OF SAID PAIRS OF CONDUCTORS BEING TWISTED WITH THE SAME DIRECTION OF LAY, (B) EACH CONDUCTOR BEING INDIVIDUALLY WRAPPED WITH AN APPROXIMATELY DOUBLE LAYER OF SPIRALLED INSULATING TAPE HAVING A LENGTH OF WRAPPING LAY EQUAL TO THE LENGTH OF LAY OF TWIST OF THE PAIR COMPRISING SAID CONDUCTOR, (C) THE DIRECTION OF SPIRAL OF THE TAPE ON ALL CONDUCTORS IN SAID CABLE BEING THE SAME, (D) SAID PAIRS BEING CABLE TOGETHER IN A HELIX HAVING A LENGTH OF LAY EXCEEDING THE LENGTH OF LAY OF ANY OF THE COMPONENT PAIR TWISTS, AND (E) A SHEATH SURROUNDING SAID CABLED CONDUCTORS.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |