Patent US2532157A successfully refreshed from Google Patents.
US2532157A
Expired / Lapsed
US
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Variable reactive microwave device
Assignee: RCA Corp
•
Filing: 1944-10-31
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Granted: 1950-11-28
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Expires: 1964-10-31
Abstract
No abstract record available.
Inventors
- 👤 Evans John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:35
CPC Classifications
H; H03; H03C; H03C7/00; H03C7/02; H03L; H03L7/00; H03L7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106770A
Cited
US1092294A
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US2054431A
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US2189584A
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US2219922A
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US2197123A
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US2241976A
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US2337214A
Cited
US2402948A
Cited
US2416168A
Cited
US2412892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |