US3400780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cushion load supporting device
Assignee: Motors Liquidation Co
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Filing: 1966-02-01
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Granted: 1968-09-10
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Keith K Kesling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/025; B65; B65G; B65G7/00; B65G7/02; B65G7/06
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |