US2967618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortical separator
Assignee: Individual
•
Filing: 1960-03-28
•
Granted: 1961-01-10
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 Vane Zdenek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
B; B04; B04C; B04C3/00; B04C3/04; B01; B01D; B01D21/00; B01D21/26; B01D21/267; B01D21/30; B01D21/34; D; D21; D21D; D21D5/00; D21D5/18; B04C5/00; B04C5/12; B04C5/13; B04C2005/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2769546A
Cited
US2843265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |