US3098971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely actuated radio frequency powered devices
Assignee: Individual
•
Filing: 1961-09-26
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Granted: 1963-07-23
•
Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert M Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A TRANSPONDER CIRCUIT COMPRISING A DUAL BAND ANTENNA FOR RECEIVING RADIO FREQUENCY ENERGY AT A FUNDAMENTAL FREQUENCY AND RE-TRANSMITTING SAID ENERGY AT A HARMONIC OF SAID FUNDAMENTAL FREQUENCY, A FIRST PASSIVE NETWORK RESONANT AT SAID HARMONIC FREQUENCY SELECTIVELY COUPLED WITH SAID ANTENNA FOR RECEIVING ENERGY AT SAID FUNDAMENTAL FREQUENCY AND MULTIPLYING THE FUNDAMENTAL FREQUENCY TO THE HARMONIC FREQUENCY, SAID FIRST PASSIVE NETWORK COMPRISING A FIRST MATCHING SECTION TUNED TO FEED RADIO FREQUENCY ENERGY AT THE FUNDAMENTAL FREQUENCY FROM THE ANTENNA TO THE FIRST NETWORK, A DIODE IN SERIES WITH THE MATCHING SECTION FOR CLIPPING SAID ENERGY, A FIRST INDUCTANCE IN SERIES WITH SAID DIODE AND CONNECTED THROUGH THE ANTENNA WITH THE FIRST MATCHING SECTION, THE DIODE, FIRST MATCHING SECTION AND FIRST INDUCTANCE COMPRISING A RESONANT CIRCUIT TUNED TO RESONATE AT A DESIRED HARMONIC OF THE FUNDAMENTAL FREQUENCY AND BEING POWERED TOTALLY BY THE ENERGY RECEIVED BY THE ANTENNA AND CLIPPED BY THE DIODE, AND A SECOND PASSIVE NETWORK RESONANT AT THE HARMONIC FREQUENCY COUPLED WITH THE FIRST NETWORK AND ENERGIZED THEREBY, THE SECOND NETWORK BEING SELECTIVELY COUPLED TO THE ANTENNA TO FEED ENERGY TO SAID ANTENNA AT THE HARMONIC FREQUENCY WHEREBY TRANSMISSION OF ENERGY AT SAID HARMONIC FREQUENCY IS EFFECTED.
Claim 2
Dependent Claim
200 words
A TRANSPONDER CIRCUIT COMPRISING A DUAL BAND ANTENNA FOR RECEIVING RADIO FREQUENCY ENERGY AT A FUNDAMENTAL FREQUENCY AND RE-TRANSMITTING SAID ENERGY AT A HARMONIC OF SAID FUNDAMENTAL FREQUENCY, A FIRST PASSIVE NETWORK RESONANT AT SAID HARMONIC FREQUENCY SELECTIVELY COUPLED WITH SAID ANTENNA FOR RECEIVING ENERGY AT SAID FUNDAMENTAL FREQUENCY AND MULTIPLYING THE FUNDAMENTAL FREQUENCY TO THE HARMONIC FREQUENCY, SAID FIRST PASSIVE NETWORK COMPRISING A FIRST MATCHING SECTION TUNED TO FEED RADIO FREQUENCY ENERGY AT THE FUNDAMENTAL FREQUENCY FROM THE ANTENNA TO THE FIRST NETWORK, A DIODE IN SERIES WITH THE MATCHING SECTION FOR CLIPPING SAID ENERGY, A FIRST INDUCTANCE IN SERIES WITH SAID DIODE AND CONNECTED THROUGH THE ANTENNA WITH THE FIRST MATCHING SECTION, THE DIODE, FIRST MATCHING SECTION AND FIRST INDUCTANCE COMPRISING A RESONANT CIRCUIT TUNED TO RESONATE AT A DESIRED HARMONIC OF THE FUNDAMENTAL FREQUENCY AND BEING POWERED TOTALLY BY THE ENERGY RECEIVED BY THE ANTENNA AND CLIPPED BY THE DIODE, AND A SECOND PASSIVE NETWORK RESONANT AT THE HARMONIC FREQUENCY COUPLED WITH THE FIRST NETWORK AND ENERGIZED THEREBY, THE SECOND NETWORK BEING SELECTIVELY COUPLED TO THE ANTENNA TO FEED ENERGY TO SAID ANTENNA AT THE HARMONIC FREQUENCY WHEREBY TRANSMISSION OF ENERGY AT SAID HARMONIC FREQUENCY IS EFFECTED.
References Cited (Backward Citations)
US2927321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |