US2833494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket ejection system
Assignee: Northrop Grumman Corp
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Filing: 1953-06-15
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Granted: 1958-05-06
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Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Parker
- 👤 Carroll D Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/36; B; B64; B64D; B64D27/00; B64D27/02; B64D27/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |