Patent US53032A successfully refreshed from Google Patents.
US53032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved process for making emery-wheels
Assignee: —
•
Filing: —
•
Granted: 1866-03-06
•
Expires: 1883-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:15
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1463
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) | 1869-03-05 | 1869-09-04 | 1870-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1873-03-05 | 1873-09-04 | 1874-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1877-03-05 | 1877-09-04 | 1878-03-06 | $7700.00 | Window Closed / Lapsed |