US2422209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner
Assignee: FLORENCE STOVE Co
•
Filing: 1943-12-06
•
Granted: 1947-06-17
•
Expires: 1963-12-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Reeves
- 👤 Leslie F Vixler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:15
CPC Classifications
F; F23; F23D; F23D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US77124A
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US1886156A
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US2072048A
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US720889A
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US990347A
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US2207553A
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US2230276A
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US2194135A
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US2311570A
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US2212078A
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US2292819A
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US2275149A
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US2226455A
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US2260839A
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US2258679A
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US2287346A
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US2326221A
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US2339637A
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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) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |