US2476125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke signaling device
Assignee: Individual
•
Filing: 1944-11-14
•
Granted: 1949-07-12
•
Expires: 1964-11-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Van Karner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:57
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06; F41H9/08; F42; F42B; F42B4/00; F42B4/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR542964A
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US1878487A
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US2035185A
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US2051331A
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US2001947A
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US2094562A
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US2119697A
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US2059098A
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FR828906A
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US2263585A
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US2306442A
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US2340329A
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US2328916A
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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 |