Patent US5452A successfully refreshed from Google Patents.
US5452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction box and axle
Assignee: —
•
Filing: —
•
Granted: 1848-02-22
•
Expires: 1865-02-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/34; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C33/306
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) | 1851-02-21 | 1851-08-23 | 1852-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1855-02-21 | 1855-08-23 | 1856-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1859-02-21 | 1859-08-23 | 1860-02-22 | $7700.00 | Window Closed / Lapsed |