US2512980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave oscillator apparatus comprising a velocity modulation tube
Assignee: Lanteris Space LLC
•
Filing: 1944-08-31
•
Granted: 1950-06-27
•
Expires: 1964-08-31
Abstract
No abstract record available.
Inventors
- 👤 David E Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:30
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2129713A
Cited
US2106768A
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US2153728A
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US2372193A
Cited
US2402184A
Cited
US2410840A
Cited
US2413963A
Cited
US2409913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |