US2865649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem axle wheel suspension for automotive vehicles
Assignee: Youngstown Steel Car Corp
•
Filing: 1956-12-05
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Granted: 1958-12-23
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Expires: 1976-12-05
Abstract
No abstract record available.
Inventors
- 👤 William M Chalmers
- 👤 Franklin B Enston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:11
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/27; B60G5/00; B60G5/04; B60G2200/00; B60G2200/30; B60G2200/31; B60G2204/00; B60G2204/40; B60G2204/45; B60G2204/4502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078521A
Cited
US2290620A
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US2663569A
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US2691420A
Cited
US2754111A
Cited
US2772912A
Cited
US2790634A
Cited
US2787475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |