US2465220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink-float apparatus for separating solids
Assignee: Sink & Float Corp
•
Filing: 1944-10-17
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Granted: 1949-03-22
•
Expires: 1964-10-17
Abstract
No abstract record available.
Inventors
- 👤 Claude Y Garber
- 👤 Frank M Mckinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:04
CPC Classifications
B; B03; B03B; B03B11/00; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B2011/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2191805A
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US2203601A
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US2315536A
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US2362482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |