US2657635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel pump and control system
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1948-06-25
•
Granted: 1953-11-03
•
Expires: 1968-06-25
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Thoren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:51
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/08; Y; Y10; Y10S; Y10S277/00; Y10S277/911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1893473A
Cited
US2159720A
Cited
US2123950A
Cited
US2107152A
Cited
US2169862A
Cited
US2246610A
Cited
US2380656A
Cited
US2457643A
Cited
US2370249A
Cited
US2460047A
Cited
US2447744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |