Patent US3214760A successfully refreshed from Google Patents.
US3214760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional antenna with a two dimensional lens formed of flat resonant dipoles
Assignee: Textron Inc
•
Filing: 1960-04-28
•
Granted: 1965-10-26
•
Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Yonkers John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:43
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A PLANAR DIRECTIONAL SIGNAL LAUNCHER COMPRISING A PLURALITY OF LIKE DIPOLE RADIATORS DISPOSED IN A PLURALITY OF PARALLEL ROWS IN END-ON-END RELATIONSHIP IN EACH ROW, SAID ROWS LYING IN A SINGLE PLANE AND HAVING A PROGRESSIVELY INCREASING LENGTH FROM THE REAR OF THE LAUNCHER TO A MAXIMUM LAUNCHER WIDTH, THE RADIATORS OF EACH ROW BEING OFFSET WITH RESPECT TO THE RADIATORS OF ADJACENT ROWS TO ALINE THE RADIATORS OF EACH ROW UPON OPENINGS BETWEEN RADIATORS OF ADJACENT ROWS, THE RADIATORS OF EACH ROW AND THE ROWS OF RADIATORS BEING CLOSELY SPACED APART WHEREBY ENERGY FED INTO REAR OF THE LAUNCHER IS COUPLED LATERALLY AS WELL AS AXIALLY THERETHROUGH TO ENERGIZE ALL OF THE RADIATORS OF THE LAUNCHER AND THEREBY PROPAGATE SUCH ENERGY FROM AN ELONGATED WAVEFRONT FOR MAXIMIZED DIRECTIVITY.
References Cited (Backward Citations)
US2192532A
Cited
DE903474C
Cited
US2577619A
Cited
US2579324A
Cited
US2624003A
Cited
US2538035A
Cited
US2663797A
Cited
CH332677A
Cited
US2644091A
Cited
US2929065A
Cited
US2921312A
Cited
US3096520A
Cited
US3016536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |