Patent US2873001A successfully refreshed from Google Patents.
US2873001A
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US
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Cyclone apparatuses for separating solids from flowing air or other gases
Assignee: ASBRINK AND CO AB
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Filing: 1955-10-31
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Granted: 1959-02-10
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Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Gerdman Pontus Lauritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:53
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0863; B; B01; B01D; B01D45/00; B01D45/12; B04; B04C; B04C7/00; B07; B07B; B07B7/00; B07B7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190404325A
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US1035822A
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FR518533A
Cited
US1383715A
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FR596156A
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GB348124A
Cited
DE659545C
Cited
GB518105A
Cited
US2542635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |