US3125758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
koehler
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:09
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/18; H01Q15/20; H01Q15/16; H01Q15/161; H01Q15/163
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
IN AN INFLATED OBLATE ANTENNA ASSEMBLAGE, A PAIR OF PARABOLOIDAL WALLS OF FLEXIBLE STRETCH-RESISTANT MATERIAL CURVING OUTWARDLY, AT LEAST A PORTION OF ONE OF WHICH WALL IS WAVE-ENERGY-REFLECTIVE; AND A JOINING PORTION OF FLEXIBLE STRETCH-RESISTANT MATERIAL INTERPOSED BETWEEN IN CONTINUOUS SURFACE JUNCTURE WITH SAID PARABOLOIDAL WALLS, SAID JOINING PORTION BEING SHAPED AS A SURFACE GENERATED BY REVOLUTION OF A CURVE ABOUT AN AXIS CONCENTRIC WITH SAID PARABOLOIDAL WALLS, AND EACH ELEMENTAL SEGMENT OF SAID JOINING PORTION HAVING A RATIO OF R*/R* LESS THAN THE NUMERICAL VALUE 2 AND GREATER THAN THE NUMERICAL VALUE OF 1.6, WHERE R* IS THE RADIUS OF CURVATURE OF A GIVEN SEGMENT IN A PARALLEL CIRCLE DIRECTION, MEASURED AS THE DISTANCE EXTENDING NORMALLY FROM SAID GIVEN SEGMENT TO SAID AXIS, AND R* IS THE RADIUS OF CURVATURE OF SAID GIVEN SEGMENT IN THE MERIDIAN DIRECTION.
References Cited (Backward Citations)
US2814038A
Cited
US2913726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |