US2883179A
Expired / Lapsed
US
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Level control means for air spring supported vehicles
Assignee: ThyssenKrupp Budd Co
•
Filing: 1956-07-12
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Granted: 1959-04-21
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Walter B Dean
- 👤 Harry M Russell-French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:41
CPC Classifications
E; E21; E21D; E21D15/00; E21D15/14; E21D15/28; E21D15/38; B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; B60G17/052; B60G17/0523; B60G17/0525; B61; B61F; B61F5/00; B61F5/02; Y; Y10; Y10S; Y10S280/00; Y10S280/01
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |