US2819392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweep wave generator
Assignee: TDK Micronas GmbH
•
Filing: 1952-11-22
•
Granted: 1958-01-07
•
Expires: 1972-11-22
Abstract
No abstract record available.
Inventors
- 👤 Harry E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
H; H03; H03K; H03K12/00; H03K6/00; H03K6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288554A
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US2277000A
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US2496283A
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US2543428A
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US2610298A
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US2633554A
Cited
US2561817A
Cited
US2631240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |