US2445341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft heater with wick burner
Assignee: Surface Combustion Corp
•
Filing: 1946-03-21
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Granted: 1948-07-20
•
Expires: 1966-03-21
Abstract
No abstract record available.
Inventors
- 👤 John I Trimble
- 👤 Jr William M Myler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:25
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/06; B64D13/08; F; F23; F23D; F23D3/00; F23D2900/00; F23D2900/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2097255A
Cited
US1583025A
Cited
US2112391A
Cited
US2348422A
Cited
US2386746A
Cited
US2378781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |