Patent US4817281A successfully refreshed from Google Patents.
Patent US3210764A successfully refreshed from Google Patents.
US3210764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual band blade antenna with filtering and matching network on blade
Assignee: Collins Radio Co
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Filing: 1961-12-29
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Granted: 1965-10-05
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Mardis V Anderson
- 👤 Lawrence P Valencie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:27
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/065; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/282; H01Q1/283; H01Q5/00; H01Q5/30; H01Q5/307; H01Q5/314; H01Q5/335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
A DUAL FREQUENCY ANTENNA, COMPRISING: A BROAD MONOPOLE HAVING A CONDUCTIVE RADIATING LAYER AND AN INSULATING LAYER; A FIRST TERMINAL FOR RECEIVING A RADIO SIGNAL AT A FREQUENCY WITHIN A PREDETERMINED RANGE OF FREQUENCIES; A FIRST COAXIAL CABLE HAVING ONE END CONNECTED TO SAID FIRST TERMINAL; A SECOND TERMINAL FOR RECEIVING A RADIO SIGNAL AT A FREQUENCY WITHIN A PREDETERMINED SECOND RANGE OF FREQUENCIES, SAID SECOND RANGE OF FREQUENCIES BEING LOWER THAN SAID FIRST RANGE OF FREQUENCIES; A SECONE COAXIAL CABLE HAVING ONE END CONNECTED TO SAID SECOND TERMINAL; FIRST AND SECOND FILTERING AND MATCHING NETWORKS ON SAID INSULATING LAYER; FIRST CONNECTING MEANS CONNECTING THE OUTER CONDUCTOR OF SAID COAXIAL CABLE TO SAID FILTERING AND MATCHING NETWORKS; SECOND CONNECTING MEANS CONNECTING THE OUTER CONDUCTOR OF SAID COAXIAL CABLES TO SAID RADIATING LAYER; A THIN CONDUCTIVE STRIP CONNECTED TO SAID FIRST AND SECOND CONNECTING MEANS, SAID THIN STRIP BEING OF A LENGTH EQUAL TO ONE-QUARTER OF A WAVELENGTH OF A PARTICULAR FREQUENCY WITHIN SAID FIRST RANGE OF FREQUENCIES; AND THIRD CONNECTING MEANS CONNECTING THE INNER CONDUCTOR OF SAID COAXIAL CABLES TO SAID FILTERING AND MATCHING NETWORKS SO THAT SAID FIRST FILTER AND MATCHING NETWORK SUBSTANTIALLY RESONATES SAID ANTENNA FOR FREQUENCIES IN SAID FIRST RANGE OF FREQUENCIES AND SAID SECOND FILTERING AND MATCHING NETWORK ACTING IN CONJUNCTION WITH SAID QUARTER WAVELENGTH STRIP SUBSTANTIALLY RESONATES SAID ANTENNA FOR FREQUENCIES WITHIN SAID SECOND RANGE OF FREQUENCIES.
Claim 2
Dependent Claim
232 words
A DUAL FREQUENCY ANTENNA, COMPRISING: A BROAD MONOPOLE HAVING A CONDUCTIVE RADIATING LAYER AND AN INSULATING LAYER; A FIRST TERMINAL FOR RECEIVING A RADIO SIGNAL AT A FREQUENCY WITHIN A PREDETERMINED RANGE OF FREQUENCIES; A FIRST COAXIAL CABLE HAVING ONE END CONNECTED TO SAID FIRST TERMINAL; A SECOND TERMINAL FOR RECEIVING A RADIO SIGNAL AT A FREQUENCY WITHIN A PREDETERMINED SECOND RANGE OF FREQUENCIES, SAID SECOND RANGE OF FREQUENCIES BEING LOWER THAN SAID FIRST RANGE OF FREQUENCIES; A SECONE COAXIAL CABLE HAVING ONE END CONNECTED TO SAID SECOND TERMINAL; FIRST AND SECOND FILTERING AND MATCHING NETWORKS ON SAID INSULATING LAYER; FIRST CONNECTING MEANS CONNECTING THE OUTER CONDUCTOR OF SAID COAXIAL CABLE TO SAID FILTERING AND MATCHING NETWORKS; SECOND CONNECTING MEANS CONNECTING THE OUTER CONDUCTOR OF SAID COAXIAL CABLES TO SAID RADIATING LAYER; A THIN CONDUCTIVE STRIP CONNECTED TO SAID FIRST AND SECOND CONNECTING MEANS, SAID THIN STRIP BEING OF A LENGTH EQUAL TO ONE-QUARTER OF A WAVELENGTH OF A PARTICULAR FREQUENCY WITHIN SAID FIRST RANGE OF FREQUENCIES; AND THIRD CONNECTING MEANS CONNECTING THE INNER CONDUCTOR OF SAID COAXIAL CABLES TO SAID FILTERING AND MATCHING NETWORKS SO THAT SAID FIRST FILTER AND MATCHING NETWORK SUBSTANTIALLY RESONATES SAID ANTENNA FOR FREQUENCIES IN SAID FIRST RANGE OF FREQUENCIES AND SAID SECOND FILTERING AND MATCHING NETWORK ACTING IN CONJUNCTION WITH SAID QUARTER WAVELENGTH STRIP SUBSTANTIALLY RESONATES SAID ANTENNA FOR FREQUENCIES WITHIN SAID SECOND RANGE OF FREQUENCIES.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |