US403701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector
Assignee: —
•
Filing: —
•
Granted: 1889-05-21
•
Expires: 1906-05-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:01
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/12; B; B01; B01D; B01D46/00; B01D46/66; B01D46/68; B01D46/681; Y; Y10; Y10S; Y10S494/00; Y10S494/90
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) | 1892-05-20 | 1892-11-19 | 1893-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-05-20 | 1896-11-19 | 1897-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-05-21 | 1900-11-20 | 1901-05-22 | $7700.00 | Window Closed / Lapsed |