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US2292689A
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Low tank silencer
Assignee: JANET M BALES
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Filing: 1941-08-04
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Granted: 1942-08-11
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Expires: 1961-08-04
Abstract
No abstract record available.
Inventors
- 👤 Wade V Heare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:45
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; F16K15/00; F16K15/14; F16K15/144; F16K15/147; F16K15/1472; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7886
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-08-10 | 1946-02-09 | 1946-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-10 | 1950-02-09 | 1950-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-10 | 1954-02-09 | 1954-08-11 | $7700.00 | Window Closed / Lapsed |