Patent US1413993A successfully refreshed from Google Patents.
US1413993A
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Process and apparatus for electrical separation of suspended particles from gases
Assignee: International Precipitation Co
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Filing: 1919-06-19
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Granted: 1922-04-25
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Expires: 1939-06-19
Abstract
No abstract record available.
Inventors
- 👤 Solon H Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:27
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/01; B03C3/013; Y; Y10; Y10S; Y10S55/00; Y10S55/38
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) | 1925-04-24 | 1925-10-24 | 1926-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-04-24 | 1929-10-24 | 1930-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-04-24 | 1933-10-24 | 1934-04-25 | $7700.00 | Window Closed / Lapsed |