US3245081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple feed wide angle antenna utilizing biconcave spherical delay lens
Assignee: Raytheon Co
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Filing: 1963-02-08
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Granted: 1966-04-05
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Expires: 1983-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jerry L Mcfarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/24; H01Q3/245; H01Q25/00; H01Q25/007; H01Q25/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A MICROWAVE LENS COMPRISING: (A) FIRST AND SECOND SPHERICAL CONDUCTIVE SHELLS EACH HAVING A UNIFORM RADIUS OF CURVATURE AS MEASURED FROM RESPECTIVE CENTERS OF CURVATURE AND SUBTENDING SUBSTANTIALLY EQUAL SOLID ANGELS EMANATING FROM SAID RESPECTIVE CENTERS OF CURVATURE THEREOF; (B) FIRST AND SECOND SETS OF RADIATING ELEMENTS DISPOSED IN CORRESPONDING POSITIONS OVER THE INNER SURFACES OF SAID FIRST AND SECOND SHELLS, RESPECTIVELY; (C) EQUAL LENGTH TRANSMISSION LINES CONNECTING EACH RADIATING ELEMENT OF SAID FIRST SET TO THE RADIATING ELEMENT OF SAID SECOND SET DISPOSED IN A CORRESPONDING POSITION ON SAID SECOND SHELL; AND (D) MEANS FOR DIRECTING A SPHERICAL ELEC-
Claim 2
Dependent Claim
100 words
A MICROWAVE LENS COMPRISING: (A) FIRST AND SECOND SPHERICAL CONDUCTIVE SHELLS EACH HAVING A UNIFORM RADIUS OF CURVATURE AS MEASURED FROM RESPECTIVE CENTERS OF CURVATURE AND SUBTENDING SUBSTANTIALLY EQUAL SOLID ANGELS EMANATING FROM SAID RESPECTIVE CENTERS OF CURVATURE THEREOF; (B) FIRST AND SECOND SETS OF RADIATING ELEMENTS DISPOSED IN CORRESPONDING POSITIONS OVER THE INNER SURFACES OF SAID FIRST AND SECOND SHELLS, RESPECTIVELY; (C) EQUAL LENGTH TRANSMISSION LINES CONNECTING EACH RADIATING ELEMENT OF SAID FIRST SET TO THE RADIATING ELEMENT OF SAID SECOND SET DISPOSED IN A CORRESPONDING POSITION ON SAID SECOND SHELL; AND (D) MEANS FOR DIRECTING A SPHERICAL ELEC-
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |