US1286458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory mechanism for dust-collectors.
Assignee: Individual
•
Filing: —
•
Granted: 1918-12-03
•
Expires: 1935-12-03
Abstract
No abstract record available.
Inventors
- 👤 Ambrose G Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/66; B01D46/74; B01D46/76; Y; Y10; Y10S; Y10S15/00; Y10S15/08
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) | 1921-12-02 | 1922-06-03 | 1922-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-12-02 | 1926-06-03 | 1926-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-12-02 | 1930-06-03 | 1930-12-03 | $7700.00 | Window Closed / Lapsed |