US2988883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply control system for supplying multiple combustion zones in afterburners
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1956-04-02
•
Granted: 1961-06-20
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Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Marshall J Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:39
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/08; F02K3/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663; Y10T137/2665; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/776; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87748; Y10T137/87756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2127172A
Cited
DE526869C
Cited
US2644513A
Cited
US2503048A
Cited
US2739442A
Cited
US2668415A
Cited
GB731524A
Cited
US2871659A
Cited
US2750741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |