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US515767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-collector
Assignee: —
•
Filing: —
•
Granted: 1894-03-06
•
Expires: 1911-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:36
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02
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) | 1897-03-05 | 1897-09-04 | 1898-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-03-06 | 1901-09-05 | 1902-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-03-06 | 1905-09-05 | 1906-03-07 | $7700.00 | Window Closed / Lapsed |