Patent US3340112A successfully refreshed from Google Patents.
US3340112A
Expired / Lapsed
US
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Method of making multi-conductor telephone cables with axially spaced water barriers
Assignee: Reliance (cords & Cables) Ltd
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Filing: 1964-01-27
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Granted: 1967-09-05
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Davis Henry
- 👤 Fisher Henry John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:33
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; H01B11/00; H01B13/02; H01B13/0285; H01B13/32; H01B13/322; H01B13/327; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF FORMING A MULTI-CONDUCTOR TELEPHONE CABLE WITH A SERIES OF AXIALLY SPACED WATER BARRIERS COMPRISING THE STEPS OF MAKING A PLURALITY OF CONDUCTORS, EACH OF WHICH IS INDIVIDUALLY COVERED THROUGHOUT ITS LENGTH WITH A WATER-IMPERMEABLE INSULATING COVERING, INTO A TELEPHONE CABLE, AND, DURING THE MAKING OF THE TELEPHONE CABLE, INTRODUCING WATER-IMPERMEABLE MATERIAL INTO THE TELEPHONE CABLE IN A SERIES OF PREDETERMINED AXIALLY SPACED APART REGIONS THEREOF, THE WATER-IMPERMEABLE MATERIAL DISPLACING THE AIR FROM AND FILLING INTERSTICES BETWEEN THE CONDUCTORS IN THE SAID REGIONS, THE TOTAL VOLUME OF WATERIMPERMEABLE MATERIAL INTRODUCED INTO THE SAID INTERSTICES IN SUBSTITUTION FOR THE AIR THEREIN INCREASING THE MUTUAL CAPACITANCE BETWEEN THE CONDUCTORS OF THE WHOLE TELEPHONE CABLE BY LESS THAN 10%.
Claim 2
Independent Claim
118 words
A METHOD OF FORMING A MULTI-CONDUCTOR TELEPHONE CABLE WITH A SERIES OF AXIALLY SPACED WATER BARRIERS COMPRISING THE STEPS OF MAKING A PLURALITY OF CONDUCTORS, EACH OF WHICH IS INDIVIDUALLY COVERED THROUGHOUT ITS LENGTH WITH A WATER-IMPERMEABLE INSULATING COVERING, INTO A TELEPHONE CABLE, AND, DURING THE MAKING OF THE TELEPHONE CABLE, INTRODUCING WATER-IMPERMEABLE MATERIAL INTO THE TELEPHONE CABLE IN A SERIES OF PREDETERMINED AXIALLY SPACED APART REGIONS THEREOF, THE WATER-IMPERMEABLE MATERIAL DISPLACING THE AIR FROM AND FILLING INTERSTICES BETWEEN THE CONDUCTORS IN THE SAID REGIONS, THE TOTAL VOLUME OF WATERIMPERMEABLE MATERIAL INTRODUCED INTO THE SAID INTERSTICES IN SUBSTITUTION FOR THE AIR THEREIN INCREASING THE MUTUAL CAPACITANCE BETWEEN THE CONDUCTORS OF THE WHOLE TELEPHONE CABLE BY LESS THAN 10%.
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |