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Patent US2461824A successfully refreshed from Google Patents.
US2461824A
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US
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Continuous rotary drum filter
Assignee: Komline Sanderson Engineering Corp
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Filing: 1947-02-10
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Granted: 1949-02-15
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Expires: 1967-02-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Komline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:08
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/044; B01D33/048; B01D33/06; B01D33/067; B01D33/073; B01D33/09; B01D33/27; B01D33/275; B01D33/44; B01D33/46; B01D33/468; B01D33/70; B01D33/72; B01D2201/00; B01D2201/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |