US3219951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interference attenuating power conductor utilizing intensified skin effect to attenuate high frequencies
Assignee: Individual
•
Filing: 1963-05-03
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Granted: 1965-11-23
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Don B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/12; H01B11/14; H01B11/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN ELECTRIC POWER TRANSMITTING CABLE FOR DELIVERING ELECTRIC POWER TO ELECTRONIC INSTALLATIONS SENSITIVE TO SPURIOUS ELECTROMAGNETIC INTERFERENCE FREQUENCIES INADVERTENTLY ABSORBED AND TRANSMITTED BY SAID CABLE COMPRISING: A CENTRAL CORE OF HIGH CONDUCTIVITY LOW PERMEABILITY MATERIAL, SAID CENTRAL CORE BEING FORMED WITH A HELICAL THREAD IN ITS OUTER SURFACE; A LAYER OF LOW CONDUCTIVITY HIGH PERMEABILITY FERROMAGNETIC MATERIAL SURROUNDING SAID CENTRAL CORE AND IN
Claim 2
Dependent Claim
63 words
AN ELECTRIC POWER TRANSMITTING CABLE FOR DELIVERING ELECTRIC POWER TO ELECTRONIC INSTALLATIONS SENSITIVE TO SPURIOUS ELECTROMAGNETIC INTERFERENCE FREQUENCIES INADVERTENTLY ABSORBED AND TRANSMITTED BY SAID CABLE COMPRISING: A CENTRAL CORE OF HIGH CONDUCTIVITY LOW PERMEABILITY MATERIAL, SAID CENTRAL CORE BEING FORMED WITH A HELICAL THREAD IN ITS OUTER SURFACE; A LAYER OF LOW CONDUCTIVITY HIGH PERMEABILITY FERROMAGNETIC MATERIAL SURROUNDING SAID CENTRAL CORE AND IN
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |