Patent US2245779A successfully refreshed from Google Patents.
US7789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension-table
Assignee: —
•
Filing: —
•
Granted: 1850-11-19
•
Expires: 1867-11-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:13
CPC Classifications
A; A47; A47B; A47B1/00; A47B1/08
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) | 1853-11-18 | 1854-05-20 | 1854-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1857-11-18 | 1858-05-20 | 1858-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1861-11-18 | 1862-05-20 | 1862-11-19 | $7700.00 | Window Closed / Lapsed |