US2641313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid fuel-fired heat radiation generator
Assignee: Individual
•
Filing: 1949-08-04
•
Granted: 1953-06-09
•
Expires: 1969-08-04
Abstract
No abstract record available.
Inventors
- 👤 Francis M Crossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:28
CPC Classifications
F; F23; F23C; F23C99/00; A; A61; A61N; A61N5/00; A61N5/06; F23C2700/00; F23C2700/04; F23C2700/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425043A
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US1127323A
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US1237858A
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US1399903A
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GB265041A
Cited
US2220928A
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US2159149A
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US2361097A
Cited
US2462166A
Cited
US2547735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |