US2755116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1952-11-19
•
Granted: 1956-07-17
•
Expires: 1972-11-19
Abstract
No abstract record available.
Inventors
- 👤 Marshall H Alldredge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:29
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0604; F16C11/0609; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32737; Y10T403/32762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1140637A
Cited
US842055A
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US1458331A
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US1608276A
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US2054082A
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US2236062A
Cited
US2359915A
Cited
US2397640A
Cited
US2629462A
Cited
US2570853A
Cited
US2570854A
Cited
US2541234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |