Patent US2775239A successfully refreshed from Google Patents.
US2775239A
Expired / Lapsed
US
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Smoke control for fireplaces
Assignee: Individual
•
Filing: 1952-07-14
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Granted: 1956-12-25
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Expires: 1972-07-14
Abstract
No abstract record available.
Inventors
- 👤 Bucci Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:20
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/185; F24B1/189; F24B1/1895; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US244397A
Cited
US729630A
Cited
US1094659A
Cited
GB188228A
Cited
US1676893A
Cited
US2209041A
Cited
US2402620A
Cited
US2490992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |