US118452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in seat-springs for vehicles
Assignee: —
•
Filing: —
•
Granted: 1871-08-29
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Expires: 1888-08-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/02; B60G21/04; B60G21/05; B60G21/055; B60G2202/00; B60G2202/10; B60G2202/13; B60G2202/135; B60G2202/1351
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) | 1874-08-28 | 1875-02-27 | 1875-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1878-08-28 | 1879-02-27 | 1879-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1882-08-28 | 1883-02-27 | 1883-08-29 | $7700.00 | Window Closed / Lapsed |