Patent US46466A successfully refreshed from Google Patents.
US46466A
Expired / Lapsed
US
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Improvement in impregnating fibrous and porous materials
Assignee: —
•
Filing: —
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Granted: 1865-02-21
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Expires: 1882-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:06
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; B; B05; B05D; B05D2252/00; B05D2252/02
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) | 1868-02-21 | 1868-08-22 | 1869-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1872-02-21 | 1872-08-22 | 1873-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1876-02-21 | 1876-08-22 | 1877-02-21 | $7700.00 | Window Closed / Lapsed |