Patent US973733A successfully refreshed from Google Patents.
Patent US7374A successfully refreshed from Google Patents.
US7374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
peters
Assignee: —
•
Filing: —
•
Granted: 1850-05-21
•
Expires: 1867-05-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:19
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12
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) | 1853-05-20 | 1853-11-19 | 1854-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1857-05-20 | 1857-11-19 | 1858-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1861-05-20 | 1861-11-19 | 1862-05-21 | $7700.00 | Window Closed / Lapsed |