US2771303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem axle spring suspension unit
Assignee: FRAZIER TANDEM SYSTEMS
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Filing: 1953-09-08
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Granted: 1956-11-20
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Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Van L Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:48
CPC Classifications
B; B60; B60G; B60G5/00; B60G5/04; B60G5/047; Y; Y10; Y10S; Y10S267/00; Y10S267/01; 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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |