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US3419210A
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US
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Full-envelope centrifuge with discharge screw
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1965-08-09
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Granted: 1968-12-31
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Fritz W Schneider
- 👤 Ingo G Stohlmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:05
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B2001/2083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US736976A
Cited
US1230560A
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US1435545A
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US1712184A
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US1710316A
Cited
US1780655A
Cited
US3268159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |