US3182315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interrogator-responder signalling system
Assignee: General Precision Inc
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Filing: 1961-11-24
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Granted: 1965-05-04
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Harold E Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:24
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN AN INTERROGATOR-RESPONDER SIGNALLING SYSTEM, A RESPONDER DEVICE COMPRISING A FIRST TUNED CIRCUIT FOR RECEIVING AN INTERROGATOR SIGNAL OF A FIRST FREQUENCY, A SECOND TUNED CIRCUIT FOR TRANSMITTING A RESPONSE SIGNAL OF A SECOND FREQUENCY, AND A DIODE CIRCUIT COUPLED BETWEEN THE FIRST TUNED CIRCUIT AND THE SECOND TUNED CIRCUIT, SAID DIODE CIRCUIT BEING OPERABLE TO VARY THE EFFECTIVE CAPACITANCE OF BOTH TUNED CIRCUITS WHEREBY OSCILLATIONS ARE SUSTAINED IN THE SECOND TUNED CIRCUIT RESULTING FROM A PUMPING OF ENERGY FROM THE FIRST TUNED CIRCUIT THROUGH THE DIODE.
Claim 2
Dependent Claim
87 words
IN AN INTERROGATOR-RESPONDER SIGNALLING SYSTEM, A RESPONDER DEVICE COMPRISING A FIRST TUNED CIRCUIT FOR RECEIVING AN INTERROGATOR SIGNAL OF A FIRST FREQUENCY, A SECOND TUNED CIRCUIT FOR TRANSMITTING A RESPONSE SIGNAL OF A SECOND FREQUENCY, AND A DIODE CIRCUIT COUPLED BETWEEN THE FIRST TUNED CIRCUIT AND THE SECOND TUNED CIRCUIT, SAID DIODE CIRCUIT BEING OPERABLE TO VARY THE EFFECTIVE CAPACITANCE OF BOTH TUNED CIRCUITS WHEREBY OSCILLATIONS ARE SUSTAINED IN THE SECOND TUNED CIRCUIT RESULTING FROM A PUMPING OF ENERGY FROM THE FIRST TUNED CIRCUIT THROUGH THE DIODE.
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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |