US2637782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant cavity filter
Assignee: Motorola Solutions Inc
•
Filing: 1947-11-28
•
Granted: 1953-05-05
•
Expires: 1967-11-28
Abstract
No abstract record available.
Inventors
- 👤 Magnuski Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:15
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04; H01P1/00; H01P1/20; H01P1/213; H01P1/2133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2181871A
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US2226479A
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US2266501A
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US2402443A
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US2440089A
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US2503256A
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US2454042A
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US2423548A
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US2533912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |