US3160702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current pipe cable system with magnetic field trap
Assignee: Okonite Co
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Filing: 1961-09-22
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Granted: 1964-12-08
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Rhea P Lapsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:55
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/06; H01B7/00; H01B7/17; H01B7/18; H01B7/26; H01B7/30; H01B9/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
AN ALTERNATING-CURRENT, ELECTRIC POWER CABLE SYSTEM COMPRISING, IN COMBINATION, A PLURALITY OF INSULATED CONDUCTORS DISPOSED WITHIN A FERROUS MAGNETIC PIPE, SAID PIPE BEING LINED WITH A MAGNETIC MATERIAL DISPERSED IN A RESIN MATRIX FOR COMPRESSING THE MAGNETIC FIELD GENERATED BY CURRENT FLOWING IN THE CONDUCTORS OF DIFFERENT POLARITIES WHEN THE SYSTEM IS IN OPERATION, THEREBY SUBSTANTIALLY TO DECREASE THE INTENSITY OF THE MAGNETIC FIELD ENTERING THE PIPE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |