US3247512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave antenna
Assignee: Laboratory For Electronics Inc
•
Filing: 1964-02-17
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Granted: 1966-04-19
•
Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Diamond Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN AN AIRBORNE DOPPLER NAVIGATOR HAVING A PLURALITY OF BEAMS OF ELECTROMAGNETIC ENERGY, EACH ILLUMINATING A DIFFERENT AREA OF THE TERRAIN BENEATH AN AIRCRAFT, AN ANTENNA, COMPRISING: (A) A FIRST PLANAR ARRAY HAVING A PLURALITY OF PARALLEL, SPACED RADIATING MEMBERS, EACH SUCH MEMBER HAVING RADATING SLOTS FORMED THEREIN; (B) A SECOND PLANAR ARRAY HAVING A PLURALITY OF PARALLEL, SPACED RADIATING MEMBERS, EACH SUCH MEMBER HAVING RADIATING SLOTS FORMED THEREIN, THE RADIATING MEMBERS OF THE SECOND PLANAR ARRAY BEING DISPOSED ORTHOGONAL TO THE RADIATING MEMBERS OF THE FIRST ARRAY AND THE RADIATING SLOTS OF THE SECOND ARRAY BEING INTERPOSED BETWEEN THE RADIATING MEMBERS OF THE FIRST ARRAY; AND, (C) MEANS FOR SEQUENTIALLY ENERGIZING THE FIRST AND THE SECOND PLANAR ARRAY TO GENERATE THE PLURALITY OF BEAMS.
Claim 2
Dependent Claim
125 words
IN AN AIRBORNE DOPPLER NAVIGATOR HAVING A PLURALITY OF BEAMS OF ELECTROMAGNETIC ENERGY, EACH ILLUMINATING A DIFFERENT AREA OF THE TERRAIN BENEATH AN AIRCRAFT, AN ANTENNA, COMPRISING: (A) A FIRST PLANAR ARRAY HAVING A PLURALITY OF PARALLEL, SPACED RADIATING MEMBERS, EACH SUCH MEMBER HAVING RADATING SLOTS FORMED THEREIN; (B) A SECOND PLANAR ARRAY HAVING A PLURALITY OF PARALLEL, SPACED RADIATING MEMBERS, EACH SUCH MEMBER HAVING RADIATING SLOTS FORMED THEREIN, THE RADIATING MEMBERS OF THE SECOND PLANAR ARRAY BEING DISPOSED ORTHOGONAL TO THE RADIATING MEMBERS OF THE FIRST ARRAY AND THE RADIATING SLOTS OF THE SECOND ARRAY BEING INTERPOSED BETWEEN THE RADIATING MEMBERS OF THE FIRST ARRAY; AND, (C) MEANS FOR SEQUENTIALLY ENERGIZING THE FIRST AND THE SECOND PLANAR ARRAY TO GENERATE THE PLURALITY OF BEAMS.
References Cited (Backward Citations)
US2851681A
Cited
US2865020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |