US2453913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial flow forced-air heater
Assignee: Bryant Heater and Manufacturing Co
•
Filing: 1943-08-28
•
Granted: 1948-11-16
•
Expires: 1963-08-28
Abstract
No abstract record available.
Inventors
- 👤 Frank R Higley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2141873A
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US1950800A
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US1941755A
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US2263998A
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US2214503A
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US2332969A
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US2314089A
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US2324540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |