Patent US3237046A successfully refreshed from Google Patents.
US3237046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slow wave structures including a periodically folded coaxial cable
Assignee: AT&T Inc
•
Filing: 1962-11-19
•
Granted: 1966-02-22
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Hilding M Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:32
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/005; H01J23/16; H01J23/24; H01J25/00; H01J25/34; H01J25/36; H01J25/38; H01J25/42; H01J25/44; H01J25/46
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
AN ELECTRON DISCHARGE DEVICE COMPRISING: MEANS FOR FORMING AND PROJECTING A STREAM OF ELECTRONS; MEANS FOR TRANSMITTING ELECTROMAGNETIC WAVE ENERGY IN INTERACTING ELECTROMAGNETIC WAVE ENERGY COMPRISING A COAXIAL CABLE HAVING INNER AND OUTER CONDUCTORS; THE COAXIAL CABLE BEING PERIODICALLY FOLDED UPON ITSELF AND COMPRISING A SERIES OF STRAIGHT SECTIONS; ALL OF THE SECTIONS BEING SUBSTANTIALLY PERPENDICULAR TO THE DIRECTION OF FLOW OF THE ELECTRON STREAM; AND A VANE ATTACHED TO THE INNER CONDUCTOR AT THE MIDDLE OF EACH STRAIGHT SECTION AND EXTENDING THROUGH A SLOT IN THE OUTER CONDUCTOR TOWARD THE ELECTRON STREAM.
References Cited (Backward Citations)
US2988669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |