US3217276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributed network attenuator
Assignee: Sprague Electric Co
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Filing: 1963-02-12
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Granted: 1965-11-09
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Expires: 1983-02-12
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.
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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) | 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 |