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US3404561A
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Vibration testing system with impedance compensation
Assignee: Textron Electronics Inc
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Filing: 1965-06-21
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Granted: 1968-10-08
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Ratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
H; H03; H03H; H03H3/00; H03H3/007; H03H3/013; G; G01; G01M; G01M1/00; G01M1/14; G01M1/16; G01M1/22; G01M7/00; G01M7/02; G01M7/022; G01N; G01N3/00; G01N3/32; G01R; G01R23/00; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3157045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |