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US3217276A Expired / Lapsed US ⏱️ 0.0 years remaining

Distributed network attenuator

Assignee: Sprague Electric Co
•
Filing: 1963-02-12
•
Granted: 1965-11-09
•
Expires: 1983-02-12
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Abstract

No abstract record available.

Inventors

  • 👤 Glenn F Cooper
  • 👤 Alan B Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:09
CPC Classifications
H; H01; H01G; H01G2/00; G; G11; G11C; G11C13/00; G11C13/04; G11C13/048; H01C; H01C1/00; H01C1/16; H01C7/00; H01C7/20; H01P; H01P1/00; H01P1/22; H04; H04N; H04N3/00; H04N3/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
AN ATTENUATOR HAVING CONSTANT ATTENUATION VALUE AT LOW FREQUENCIES COMPRISING A DISTRIBUTED NETWORK CONSISTING OF A RIGID DIELECTRIC ELEMENT, A CONTINUOUS FOLDED RESISTIVE STRIP ARRANGED AROUND AN EDGE OF THE ELEMENT AND FROMING A FIRST ELECTRODE ON ONE SURFACE OF THE ELEMENT AND A SECOND ELECTRODE ON THE OTHER SURFACE OF THE ELEMENT SAID ELECTRODES BEING IN CAPACTIVE RELATIONSHIP WITH ONE ANOTHER, AT LEAST ONE OF SAID ELECTRODES HAVING APPRECIABLE RESISTANCE, A RESISTOR SEPARATE FROM SAID NETWORK, A FIRST TERMINAL CONNECTED BETWEEN SAID RESISTOR AND SAID SECOND ELECTRODE, A SECOND TERMINAL CONNECTED TO SAID FIRST ELECTRODE SPACED FROM SAID EDGE, A THRID TERMINAL CONNECTED TO SAID RESISTOR SPACED FROM SAID FIRST TERMINAL CONNECTED CONNECTED TO THE NETWORK AT THE SECOND TERMINAL, AN OUTPUT CONNECTED TO THE CONNECTION BETWEEN THE SECOND ELECTRODE AND THE RESISTOR AT THE FIRST TERMINAL AND THE OTHER END OF THE RESISTOR CONNECTED TO GROUND AT THE THIRD TERMINAL, WHEREBY AT LOW FREQUENCIES THE ATTENUATION IS SUBSTANTIALLY CONSTANT AND A HIGHER FREQUENCIES THE ATTENUATION DECREASES.
Claim 2
Dependent Claim 168 words
AN ATTENUATOR HAVING CONSTANT ATTENUATION VALUE AT LOW FREQUENCIES COMPRISING A DISTRIBUTED NETWORK CONSISTING OF A RIGID DIELECTRIC ELEMENT, A CONTINUOUS FOLDED RESISTIVE STRIP ARRANGED AROUND AN EDGE OF THE ELEMENT AND FROMING A FIRST ELECTRODE ON ONE SURFACE OF THE ELEMENT AND A SECOND ELECTRODE ON THE OTHER SURFACE OF THE ELEMENT SAID ELECTRODES BEING IN CAPACTIVE RELATIONSHIP WITH ONE ANOTHER, AT LEAST ONE OF SAID ELECTRODES HAVING APPRECIABLE RESISTANCE, A RESISTOR SEPARATE FROM SAID NETWORK, A FIRST TERMINAL CONNECTED BETWEEN SAID RESISTOR AND SAID SECOND ELECTRODE, A SECOND TERMINAL CONNECTED TO SAID FIRST ELECTRODE SPACED FROM SAID EDGE, A THRID TERMINAL CONNECTED TO SAID RESISTOR SPACED FROM SAID FIRST TERMINAL CONNECTED CONNECTED TO THE NETWORK AT THE SECOND TERMINAL, AN OUTPUT CONNECTED TO THE CONNECTION BETWEEN THE SECOND ELECTRODE AND THE RESISTOR AT THE FIRST TERMINAL AND THE OTHER END OF THE RESISTOR CONNECTED TO GROUND AT THE THIRD TERMINAL, WHEREBY AT LOW FREQUENCIES THE ATTENUATION IS SUBSTANTIALLY CONSTANT AND A HIGHER FREQUENCIES THE ATTENUATION DECREASES.

References Cited (Backward Citations)

US2126915A Cited
US2493199A Cited
US2634330A Cited
US2828454A Cited
US2637777A Cited
US2694185A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-11-08 1969-05-10 1969-11-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-11-08 1973-05-10 1973-11-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-11-08 1977-05-10 1977-11-09 $7700.00 Window Closed / Lapsed

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