Patent US2419525A successfully refreshed from Google Patents.
US2656008A
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US
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Fume disposal system
Assignee: Sapolin Paints Inc
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Filing: 1950-03-22
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Granted: 1953-10-20
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Expires: 1970-03-22
Abstract
No abstract record available.
Inventors
- 👤 John P Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:47
CPC Classifications
F; F23; F23M; F23M9/00; F23M9/06; B; B01; B01D; B01D53/00; B01D53/34; F23G; F23G7/00; F23G7/06; F23G7/061; F23G7/065; F23J; F23J2217/00; F23J2217/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1298159A
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US1432582A
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US2193176A
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US2341268A
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US2406373A
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US2494135A
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US2492947A
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US2512541A
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US2506972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |