Patent US711760A successfully refreshed from Google Patents.
US711760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-collector.
Assignee: Individual
•
Filing: 1899-09-05
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Granted: 1902-10-21
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Expires: 1919-09-05
Abstract
No abstract record available.
Inventors
- 👤 Emil R Draver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:29
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/26
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) | 1905-10-20 | 1906-04-21 | 1906-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-10-20 | 1910-04-21 | 1910-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-10-20 | 1914-04-21 | 1914-10-21 | $7700.00 | Window Closed / Lapsed |