US95643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved rail wat-rail chair
Assignee: —
•
Filing: —
•
Granted: 1869-10-12
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Expires: 1886-10-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:22
CPC Classifications
E; E01; E01B; E01B11/00; E01B11/02; E01B11/10
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) | 1872-10-11 | 1873-04-12 | 1873-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1876-10-11 | 1877-04-12 | 1877-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1880-10-11 | 1881-04-12 | 1881-10-12 | $7700.00 | Window Closed / Lapsed |