Patent US2519161A successfully refreshed from Google Patents.
US2519161A
Expired / Lapsed
US
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Acoustic testing structure, including sound absorbing panels
Assignee: Individual
•
Filing: 1946-07-18
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Granted: 1950-08-15
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Expires: 1966-07-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1919716A
Cited
US2112608A
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US2104872A
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US2104874A
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US2152169A
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US2270825A
Cited
US2334502A
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US2423199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |