Patent US2476171A successfully refreshed from Google Patents.
US2476171A
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Smoke screen generator
Assignee: Stewart Warner Corp
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Filing: 1945-07-18
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Granted: 1949-07-12
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Expires: 1965-07-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Lynn A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:44
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06; F16; F16K; F16K3/00; F16K3/02; F16K3/16; F16K3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1296226A
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US1665267A
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US2048997A
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US2173756A
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US2070038A
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FR799422A
Cited
FR832933A
Cited
US2154002A
Cited
US2418098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |