Patent US3277388A successfully refreshed from Google Patents.
US3277388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal attenuation network
Assignee: Individual
•
Filing: 1964-03-27
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Granted: 1966-10-04
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Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Boyajian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:28
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3052; H03G3/3057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A CURRENT-CONTROLLED SIGNAL-VOLTAGE DIVISION CIRCUIT FOR OPERATION IN CONNECTION WITH INPUT SIGNALS AT A SUBSTANTIALLY FIXED FREQUENCY, SAID CIRCUIT COMPRISING: (A) A FIXED IMPEDANCE, (B) A VARIABLE IMPEDANCE NETWORK INCLUDING A TRANSFORMER HAVING PRIMARY AND SECONDARY CIRCUITS TUNED TO SAID FREQUENCY. (C) SAID PRIMARY CIRCUIT BEING CONNECTED IN SERIES WITH SAID FIXED IMPEDANCE, (D) SAID VARIABLE IMPEDANCE NETWORK FURTHER INCLUDING, IN SHUNT WITH THE SECONDARY CIRCUIT THEREOF, A DIODE IN SERIES CONNECTION WITH A CAPACITOR, AND (E) MEANS FOR SUPPLYING A DIRECT CURRENT OF CONTROLLABLE MAGNITUDE TO SAID DIODE,
Claim 2
Dependent Claim
89 words
A CURRENT-CONTROLLED SIGNAL-VOLTAGE DIVISION CIRCUIT FOR OPERATION IN CONNECTION WITH INPUT SIGNALS AT A SUBSTANTIALLY FIXED FREQUENCY, SAID CIRCUIT COMPRISING: (A) A FIXED IMPEDANCE, (B) A VARIABLE IMPEDANCE NETWORK INCLUDING A TRANSFORMER HAVING PRIMARY AND SECONDARY CIRCUITS TUNED TO SAID FREQUENCY. (C) SAID PRIMARY CIRCUIT BEING CONNECTED IN SERIES WITH SAID FIXED IMPEDANCE, (D) SAID VARIABLE IMPEDANCE NETWORK FURTHER INCLUDING, IN SHUNT WITH THE SECONDARY CIRCUIT THEREOF, A DIODE IN SERIES CONNECTION WITH A CAPACITOR, AND (E) MEANS FOR SUPPLYING A DIRECT CURRENT OF CONTROLLABLE MAGNITUDE TO SAID DIODE,
References Cited (Backward Citations)
US2981835A
Cited
US3072849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |