US2653805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent fuel injection valve
Assignee: McDonnell Aircraft Corp
•
Filing: 1947-12-08
•
Granted: 1953-09-29
•
Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 Max G Scherberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:15
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021521A
Cited
US1257862A
Cited
US1625787A
Cited
US2142601A
Cited
GB506233A
Cited
GB502527A
Cited
US2432213A
Cited
US2505757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |