US2783378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulation in a ridged wave guide
Assignee: Individual
•
Filing: 1949-07-30
•
Granted: 1957-02-26
•
Expires: 1969-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Clyde E Vogeley
- 👤 William L Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02; H03C7/025; H03C7/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2411553A
Cited
US2441598A
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US2458579A
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US2444060A
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US2457601A
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US2442606A
Cited
US2484256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |