Patent US2834905A successfully refreshed from Google Patents.
US2834905A
Expired / Lapsed
US
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Electron discharge device
Assignee: Bendix Aviation Corp
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Filing: 1956-03-28
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Granted: 1958-05-13
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Expires: 1976-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert A Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:44
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04; H01J17/06; H01J17/066; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A GAS DISCHARGE DEVICE COMPRISING AN ENVELOPE, AN ELONGATED CONCAVE SHAPED CATHODE, AN INVERTED L-SHAPED ANODE, AND BARIUM FILLED RODS SUPPORTED SUBSTANTIALLY PARALLEL TO SAID CATHODE.
Claim 2
Dependent Claim
26 words
A GAS DISCHARGE DEVICE COMPRISING AN ENVELOPE, AN ELONGATED CONCAVE SHAPED CATHODE, AN INVERTED L-SHAPED ANODE, AND BARIUM FILLED RODS SUPPORTED SUBSTANTIALLY PARALLEL TO SAID CATHODE.
References Cited (Backward Citations)
US1990041A
Cited
US2217205A
Cited
US2508856A
Cited
US2523269A
Cited
US2657452A
Cited
US2680206A
Cited
US2682619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |