US3107313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Velocity modulated electron tube with cathode means providing plural electron streams
Assignee: Individual
•
Filing: 1959-10-30
•
Granted: 1963-10-15
•
Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Johann R Hechtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:07
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
IN A VELOCITY-MODULATED ELECTRON TUBE, THE COMBINATION COMPRISING: A COLLECTOR ELECTRODE; A SINGLE-CATHODE ELECTRODE HAVING CONTIGUOUS ELECTRON-EMISSIVE CONCAVITIES FOR PROVIDING SEPARATE ELECTRON STREAMLETS EXTENDING ALONG SUBSTANTIALLY PARALLEL AND COEXTENSIVE AXES TOWARD SAID COLLECTOR ELECTRODE; AND A PLURALITY OF GRIDS POSITIONED IN SERIAL ORDER BETWEEN SAID CATHODE AND COLLECTOR ELECTRODES, EACH SAID GRID BEING FORMED TO DEFINE FULLY OPEN PASSAGES, OF LIKE NUMBER AND IN REGISTRY WITH SAID STREAMLETS, FOR EFFECTING ELECTROSTATS FIELD ACTION UPON SAID STREAMLETS INDIVIDUALLY.
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |