US1974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Christopher edlvard dahpiitjr
Assignee: —
•
Filing: —
•
Granted: 1841-02-12
•
Expires: 1858-02-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:32
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/002
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) | 1844-02-12 | 1844-08-13 | 1845-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1848-02-12 | 1848-08-13 | 1849-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1852-02-12 | 1852-08-13 | 1853-02-12 | $7700.00 | Window Closed / Lapsed |