US968456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-catcher.
Assignee: Siemens Industry Inc
•
Filing: 1904-04-08
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Granted: 1910-08-23
•
Expires: 1924-04-08
Abstract
No abstract record available.
Inventors
- 👤 Victor E Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/18; F02M7/20
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) | 1913-08-22 | 1914-02-21 | 1914-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-08-22 | 1918-02-21 | 1918-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-08-22 | 1922-02-21 | 1922-08-23 | $7700.00 | Window Closed / Lapsed |