Patent US18169A successfully refreshed from Google Patents.
US18169A
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Assignee: —
•
Filing: —
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Granted: 1857-09-08
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Expires: 1874-09-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:08
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/36; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/439; Y10T70/441; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/752; Y10T70/7531; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7847; Y10T70/7859; Y10T70/7864
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) | 1860-09-07 | 1861-03-09 | 1861-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1864-09-07 | 1865-03-09 | 1865-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1868-09-07 | 1869-03-09 | 1869-09-08 | $7700.00 | Window Closed / Lapsed |