US121572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in railway-car axle-boxes
Assignee: —
•
Filing: —
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Granted: 1871-12-05
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Expires: 1888-12-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:39
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/26; B61F5/30; B61F5/36; B60; B60G; B60G17/00; B60G17/015; B60G17/016; B60G17/0162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1874-12-04 | 1875-06-05 | 1875-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1878-12-04 | 1879-06-05 | 1879-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1882-12-04 | 1883-06-05 | 1883-12-05 | $7700.00 | Window Closed / Lapsed |