Patent US3121820A successfully refreshed from Google Patents.
US3121820A
Expired / Lapsed
US
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Single mode amplifier or oscillator
Assignee: General Electric Co
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Filing: 1960-10-28
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Granted: 1964-02-18
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Donald A Wilbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:27
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587; H01J25/593
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A MAGNETRON ANODE STRUCTURE COMPRISING A CONDUCTIVE MEMBER HAVING A PLURALITY OF VANES ALONG A PORTION THEREOF, THE DISTANCE BETWEEN EACH PAIR OF ADJACENT VANES ALONG SAID PORTION BEING DIFFERENT FROM THAT OF ANY OTHER PAIR OF ADJACENT VANES THEREALONG, A CAVITY BETWEEN EACH PAIR OF ADJACENT VANES, THE VOLUME OF EACH CAVITY ALONG SAID PORTION BEING DIFFERENT TO COMPENSATE FOR THE DIFFERENCES IN SAID SPACINGS AND PRESENT A CHARACTERISTIC TO AN
Claim 2
Dependent Claim
72 words
A MAGNETRON ANODE STRUCTURE COMPRISING A CONDUCTIVE MEMBER HAVING A PLURALITY OF VANES ALONG A PORTION THEREOF, THE DISTANCE BETWEEN EACH PAIR OF ADJACENT VANES ALONG SAID PORTION BEING DIFFERENT FROM THAT OF ANY OTHER PAIR OF ADJACENT VANES THEREALONG, A CAVITY BETWEEN EACH PAIR OF ADJACENT VANES, THE VOLUME OF EACH CAVITY ALONG SAID PORTION BEING DIFFERENT TO COMPENSATE FOR THE DIFFERENCES IN SAID SPACINGS AND PRESENT A CHARACTERISTIC TO AN
References Cited (Backward Citations)
US2904720A
Cited
US2956200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |