US3470828A
Expired / Lapsed
US
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Electromagnetic inductive suspension and stabilization system for a ground vehicle
Assignee: JAMES R POWELL JR
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Filing: 1967-11-21
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Granted: 1969-10-07
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Expires: 1987-11-21
Abstract
No abstract record available.
Inventors
- 👤 James R Powell Jr
- 👤 Gordon T Danby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:21
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/04; B60L; B60L13/00; B60L13/04; B61; B61B; B61B13/00; B61B13/08; B60L2200/00; B60L2200/26; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/902; Y10S505/903; Y10S505/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125964A
Cited
US1020943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |