US429112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter
Assignee: —
•
Filing: —
•
Granted: 1890-06-03
•
Expires: 1907-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:04
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; B01D24/12; B01D24/002; B01D24/005; B01D24/46; B01D24/4631; B01D24/4657; B01D2201/00; B01D2201/02
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) | 1893-06-02 | 1893-12-02 | 1894-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-06-02 | 1897-12-02 | 1898-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-06-03 | 1901-12-03 | 1902-06-04 | $7700.00 | Window Closed / Lapsed |