Patent US4477941A successfully refreshed from Google Patents.
Patent US2136178A successfully refreshed from Google Patents.
Patent US2421602A successfully refreshed from Google Patents.
Patent US4157571A successfully refreshed from Google Patents.
Patent US41404A successfully refreshed from Google Patents.
US41404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in springs for wheel-vehicles
Assignee: —
•
Filing: —
•
Granted: 1864-01-26
•
Expires: 1881-01-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:23
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1867-01-25 | 1867-07-27 | 1868-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1871-01-25 | 1871-07-27 | 1872-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1875-01-25 | 1875-07-27 | 1876-01-26 | $7700.00 | Window Closed / Lapsed |