Patent US1985A successfully refreshed from Google Patents.
US1985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charles m
Assignee: —
•
Filing: —
•
Granted: 1841-02-18
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Expires: 1858-02-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
A; A61; A61J; A61J9/00; A61J9/04
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) | 1844-02-18 | 1844-08-19 | 1845-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1848-02-18 | 1848-08-19 | 1849-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1852-02-18 | 1852-08-19 | 1853-02-18 | $7700.00 | Window Closed / Lapsed |