Patent US3288241A successfully refreshed from Google Patents.
US3288241A
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Method and appartus for measurement of acoustic power transmission and impedance
Assignee: Aeroprojects Inc
•
Filing: 1960-11-01
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Granted: 1966-11-29
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Expires: 1980-11-01
Abstract
No abstract record available.
Inventors
- 👤 Bancroft Dennison
- 👤 Maropis Nicholas
- 👤 Prisco Carmine F De
- 👤 William C Elmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:09
CPC Classifications
G; G01; G01H; G01H15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2280226A
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US2562281A
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US2442606A
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US2605323A
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US2675086A
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US2702472A
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US2837914A
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US2956184A
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US2834422A
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US3088541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |