US2848649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic wave generator
Assignee: TDK Micronas GmbH
•
Filing: 1952-01-24
•
Granted: 1958-08-19
•
Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 John H Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2081429A
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US2051623A
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US2308523A
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US2459805A
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US2410822A
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US2653270A
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US2538267A
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US2636948A
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US2557961A
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US2643297A
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |