US2954237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive leveling and anti-dive system
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1956-02-27
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Granted: 1960-09-27
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Achilles C Sampietro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; B60G21/00; B60G21/02; Y; Y10; Y10S; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB518848A
Cited
US2184202A
Cited
US2289907A
Cited
US2593040A
Cited
US2714517A
Cited
US2644699A
Cited
FR1040639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |