Patent US3089564A successfully refreshed from Google Patents.
Patent US832450A successfully refreshed from Google Patents.
US832450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaking device for tubular and like filters.
Assignee: Individual
•
Filing: 1905-02-16
•
Granted: 1906-10-02
•
Expires: 1925-02-16
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Friedrich Ludwig Beth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:18
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/66; B01D46/74; B01D46/76
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) | 1909-10-01 | 1910-04-02 | 1910-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-10-01 | 1914-04-02 | 1914-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-10-01 | 1918-04-02 | 1918-10-02 | $7700.00 | Window Closed / Lapsed |