Patent US1451418A successfully refreshed from Google Patents.
US8795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Of dooe-kitobs
Assignee: —
•
Filing: —
•
Granted: 1852-03-09
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Expires: 1869-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:09
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/26
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) | 1855-03-09 | 1855-09-08 | 1856-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1859-03-09 | 1859-09-08 | 1860-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1863-03-09 | 1863-09-08 | 1864-03-09 | $7700.00 | Window Closed / Lapsed |