US3398700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway truck with flexibly jointed and rigidly mounted transoms
Assignee: Amsted Industries Inc
•
Filing: 1967-03-02
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Granted: 1968-08-27
•
Expires: 1987-03-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; B; B61; B61F; B61F5/00; B61F5/50; B61F5/52; F16C11/00; F16C11/04; F16C11/06; F16C11/0614; F16C2326/00; F16C2326/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2061767A
Cited
US2347628A
Cited
US2316592A
Cited
US2976819A
Cited
US3181479A
Cited
US3313245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |