US3277489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Millimeter phased array
Assignee: GTE Sylvania Inc
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Filing: 1963-09-30
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Granted: 1966-10-04
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Blaisdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
A PHASED ARRAY COMPRISING A FIRST AND A SECOND GROUND PLANE HAVING A PAIR OF CONFRONTING SURFACES EACH SURFACE HAVING A FIELD CONSTRAINING ELEMENT THEREIN, SAID ELEMENT HAVING AN APEX END WHICH OUTWARDLY TAPERS TO A PREDETERMINED WIDTH, AT WHICH POINT IT DIVIDES INTO A PLURALITY OF ELONGATED FIELD CONSTRAINING ELEMENTS PARALLEL TO EACH OTHER, THE TAPERED ELEMENT AND ELONGATED ELEMENTS OF ONE GROUND PLANE CONFRONTING CORRESPONDING ELEMENTS OF THE OTHER GROUND PLANE, ONE OF SAID GROUND PLANES HAVING A PLURALITY OF SLOTS THEREIN WITH A SLOT CONMUNICATING WITH EACH PAIR OF RESPECTIVE ELONGATED CONFRONTING ELEMENTS, A LIKE PLURALITY OF DIELECTRIC SLUGS EACH SLIDABLY MOUNTED IN A CORRESPONDING ONE OF SAID SLOTS, AND MEANS FOR MOVING SAID SLUGS IN OR OUT OF SAID SLOTS TO SELECTIVELY ALTER THE PHASE OF SIGNALS PROPAGATING IN THE REGION OF SAID CONFRONTING ELONGATED ELEMENTS.
References Cited (Backward Citations)
US3041605A
Cited
US2959784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |