US3566317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible surface wave transmission line
Assignee: Individual
•
Filing: 1968-05-24
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Granted: 1971-02-23
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Expires: 1988-05-24
Abstract
Abstract THIS INVENTION RELATES TO A SURFACE WAVE TRANSMISSION SYSTEM, IN WHICH THE CLOSED END OF THE SURFACE WAVE LAUNCHER IS FORMED AS A COAXIAL LINE HAVING AN INNER CONDUCTOR THROUGH WHICH A SURFACE WAVE CONDUCTOR SI MOVABLE, AND AN OUTER CONDUCTOR CONDUCTIVELY SUPPORTED ON ONE END, AND DIELECTRICALLY SUPPORTED ON THE INNER CONDUCTOR ON THE OTHER END OF THE COAXIAL LIN, AND CAPACITIVELY COUPLED TO THE INNER CONDUCTOR AT AN INTERMEDIATE POINT OF COAXIAL LINE SO AS TO PERMIT TUNING FROM THE THE OUTSIDE.
Inventors
- 👤 Theodore Hafner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:45
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1895; H01P; H01P3/00; H01P3/10
Claims Analysis
Total Claims: 0
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |