Patent US181486A successfully refreshed from Google Patents.
US181486A
Expired / Lapsed
US
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Improvement in leather-tapering machines
Assignee: —
•
Filing: —
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Granted: 1876-08-22
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Expires: 1893-08-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:46
CPC Classifications
C; C14; C14B; C14B1/00; C14B1/02; C14B1/14; C14B1/18
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) | 1879-08-22 | 1880-02-21 | 1880-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-08-22 | 1884-02-21 | 1884-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-08-22 | 1888-02-21 | 1888-08-22 | $7700.00 | Window Closed / Lapsed |