US2440262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply system for aircraft
Assignee: Individual
•
Filing: 1942-02-16
•
Granted: 1948-04-27
•
Expires: 1962-02-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Grey
- 👤 Edward M Gavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:25
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/005; Y; Y10; Y10T; Y10T137/00; Y10T137/4673
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312158A
Cited
US1329997A
Cited
US1532326A
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US1776877A
Cited
US1889517A
Cited
US2024133A
Cited
US2268957A
Cited
US2170136A
Cited
US2243594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |