US2468917A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1944-09-28
•
Granted: 1949-05-03
•
Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 James H Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:53
CPC Classifications
F; F02; F02M; F02M51/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US252927A
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US2415886A
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US1059604A
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US1038598A
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US1711660A
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US1684603A
Cited
US2068682A
Cited
US1991807A
Cited
US2155272A
Cited
US2089279A
Cited
US2226856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |