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US2590480A
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US
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Cyclone separator
Assignee: Bureau Van Tongeren N V
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Filing: 1949-03-04
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Granted: 1952-03-25
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Expires: 1969-03-04
Abstract
No abstract record available.
Inventors
- 👤 Kolk Hendrik Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:26
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B62; B62M; B62M1/00; B62M1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1066704A
Cited
US1917606A
Cited
US2004467A
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US2106589A
Cited
US2214658A
Cited
US2204509A
Cited
US2489903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |