Patent US3178653A successfully refreshed from Google Patents.
US3178653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cavity resonator with beamconcentric ring electrode
Assignee: Raytheon Co
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Filing: 1960-04-04
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Granted: 1965-04-13
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Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Burton H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:59
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
AN ELECTRON DISCHARGE DEVICE COMPRISING: A CAVITY RESONATOR; AN ELECTRON GUN FOR PROJECTING A BEAM OF ELECTRONS THROUGH SAID CAVITY; A RING ELECTRODE DISPOSED AT ABOUT THE CENTER OF SAID RESONATOR AND CONCENTRIC WITH SAID BEAM, SAID ELECTRODE HAVING A DIMENSION TRANSVERSE TO SAID BEAM THAT IS LARGE WITH RESPECT TO ITS DIMENSION
Claim 2
Dependent Claim
53 words
AN ELECTRON DISCHARGE DEVICE COMPRISING: A CAVITY RESONATOR; AN ELECTRON GUN FOR PROJECTING A BEAM OF ELECTRONS THROUGH SAID CAVITY; A RING ELECTRODE DISPOSED AT ABOUT THE CENTER OF SAID RESONATOR AND CONCENTRIC WITH SAID BEAM, SAID ELECTRODE HAVING A DIMENSION TRANSVERSE TO SAID BEAM THAT IS LARGE WITH RESPECT TO ITS DIMENSION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |