US888638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrical separation of particles from a fluid stream.
Assignee: WILLIAM J EHRSAM
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Filing: 1906-03-24
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Granted: 1908-05-26
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Expires: 1926-03-24
Abstract
No abstract record available.
Inventors
- 👤 Lawrence N Morscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/14; B03C3/15
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) | 1911-05-26 | 1911-11-25 | 1912-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-05-26 | 1915-11-25 | 1916-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-05-26 | 1919-11-25 | 1920-05-26 | $7700.00 | Window Closed / Lapsed |