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US2941150A
Expired / Lapsed
US
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Measuring circuit with time-varied electric filter
Assignee: Bendix Aviation Corp
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Filing: 1955-12-19
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Granted: 1960-06-14
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Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 James A K Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:21
CPC Classifications
H; H03; H03H; H03H19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2469383A
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US2508321A
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US2470895A
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US2575711A
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US2752574A
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US2774940A
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US2856468A
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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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |