Patent US134646A successfully refreshed from Google Patents.
US134646A
Expired / Lapsed
US
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Improvement in car-springs
Assignee: —
•
Filing: —
•
Granted: 1873-01-07
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Expires: 1890-01-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:29
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/021; B60G11/00; B60G11/14; B60G2202/00; B60G2202/10; B60G2202/12; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/124; B60G2206/00; B60G2206/01; B60G2206/40; B60G2206/42; B60G2206/426; B60G2500/00; B60G2500/20
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) | 1876-01-07 | 1876-07-08 | 1877-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1880-01-07 | 1880-07-08 | 1881-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1884-01-07 | 1884-07-08 | 1885-01-07 | $7700.00 | Window Closed / Lapsed |