US2929519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating trailer
Assignee: Northrop Grumman Corp
•
Filing: 1956-11-27
•
Granted: 1960-03-22
•
Expires: 1976-11-27
Abstract
No abstract record available.
Inventors
- 👤 Allan J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:14
CPC Classifications
B; B62; B62D; B62D13/00; B62D13/04; B60; B60P; B60P1/00; B60P1/02; B64; B64F; B64F5/00; B64F5/50; B66; B66F; B66F7/00; B66F7/06; B66F7/0625; B66F7/0641; B66F7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1255775A
Cited
US2123505A
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US2274821A
Cited
US2471901A
Cited
US2500700A
Cited
US2454840A
Cited
US2613827A
Cited
US2826319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |