US3415374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vortical separation of solids
Assignee: NOSS Co A Co OF GA
•
Filing: 1964-09-23
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Granted: 1968-12-10
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Wikdahl Nils Anders Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:56
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/24; B04C5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB693649A
Cited
US2756878A
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US2956679A
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US3214022A
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US2953248A
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US3039608A
Cited
AT226740B
Cited
US3249226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |