Patent US2583698A successfully refreshed from Google Patents.
US2583698A
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US
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Rotary drum vacuum filter
Assignee: Komline Sanderson Engineering Corp
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Filing: 1949-04-30
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Granted: 1952-01-29
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Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Komline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:41
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
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) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |