US3037629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separating a mixture of solid particles of various sizes suspended in liquid
Assignee: Stamicarbon BV
•
Filing: 1959-12-21
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Granted: 1962-06-05
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Freerk J Fontein
- 👤 Hubert H Dreissen
- 👤 Hubertus F Jennekens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
B; B07; B07B; B07B1/00; B07B2230/00; B07B2230/01; Y; Y10; Y10T; Y10T137/00; Y10T137/8593
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1045272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |