US3086203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication system using polarized waves and employing concentric waveguides to control transmitter-receiver interaction
Assignee: AT&T Inc
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Filing: 1961-03-07
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Granted: 1963-04-16
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Paul T Hutchison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:36
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
IN A FEED FOR INTERCONNECTING A BROADBAND ANTENNA AND SEPARATE HIGH FREQUENCY TRANSMITTERS AND RECEIVERS, A FIRST SECTION OF CIRCULAR WAVEGUIDE OF DIAMETER APPROPRIATE TO THE FEED PORT OF THE ANTENNA, A SECOND CIRCULAR WAVEGUIDE SECTION CONCENTRIC WITH THE FIRST AND HAVING A WALL THICKNESS TAPERING FROM THAT REQUIRED TO PROVIDE AN INNER DIAMETER APPROPRIATE TO THE TRANSMISSION OF SIGNALS TO THE RECEIVER TO SUBSTANTIALLY ZERO THICKNESS AT THE FEED PORT OF THE ANTENNA, MEANS FOR LAUNCHING A WAVE TO BE TRANSMITTED IN THE COAXIAL REGION DEFINED BY THE FIRST SECTION AND THE OUTER SURFACE OF SAID SECOND SECTION, AND MEANS FOR CONVERTING WAVES ENTERING SAID SECOND WAVEGUIDE SECTION FROM SAID ANTENNA TO CIRCULARLY POLARIZED WAVES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |