US2449022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel system for aircraft power plants for aircraft propulsion and boundary layer aircontrol
Assignee: Individual
•
Filing: 1945-03-12
•
Granted: 1948-09-07
•
Expires: 1965-03-12
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:59
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/055; B; B64; B64C; B64C21/00; B64C21/02; B64C21/06; B64C2230/00; B64C2230/04; B64C2230/06; Y; Y02; Y02T; Y02T50/00; Y02T50/10; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1364770A
Cited
US1854043A
Cited
GB390363A
Cited
US2149298A
Cited
GB512064A
Cited
US2252528A
Cited
US2272664A
Cited
GB548898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |