Patent US3014589A successfully refreshed from Google Patents.
US3014589A
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US
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Apparatus for dewatering suspensions, such as fibrous pulp suspensions
Assignee: Valmet AB
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Filing: 1958-05-23
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Granted: 1961-12-26
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Frykhult Rune Helmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:08
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02; D21C9/06; B; B01; B01D; B01D33/00; B01D33/06; B01D33/067; B01D33/073; B01D33/09; B01D33/44; B01D33/46; B01D33/465; B01D33/466
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |