Patent US323A successfully refreshed from Google Patents.
US323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thomas
Assignee: —
•
Filing: —
•
Granted: 1837-07-31
•
Expires: 1854-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:38
CPC Classifications
B; B23; B23B; B23B47/00; B23B47/28; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/564
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1840-07-30 | 1841-01-29 | 1841-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1844-07-30 | 1845-01-29 | 1845-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1848-07-30 | 1849-01-29 | 1849-07-31 | $7700.00 | Window Closed / Lapsed |