US3298209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing container
Assignee: Metso Fiber Karlstad AB
•
Filing: 1964-12-21
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Granted: 1967-01-17
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Laakso Oliver Armas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN APPARATUS FOR WASHING CELLULOSIC PULP WHEREIN CELLULOSIC PULP IS CONTINUOUSLY SUPPLIED TO ONE END OF THE APPARATUS, CELLULOSIC PULP IN A MAJOR PORTION OF THE APPARATUS IS STATIONARY WHILE BEING WASHED, AND WASHED CELLULOSIC PULP IS CONTINUOUSLY DISCHARGED FROM THE OTHER END OF SAID APPARATUS COMPRISING: AN UPRIGHT CYLINDRICAL CONTAINER; MEANS FOR SUPPLYING THE PULP TO ONE END OF SAID CONTAINER; MEANS FOR DISCHARGING THE PULP FROM THE OTHER END OF THE CONTAINER; MEANS FOR SUPPLYING WASHING LIQUID TO SAID CONTAINER; MEANS FOR EXTRACTING TREATING LIQUID FROM THE PULP; THE MIDDLE PORTION OF SAID CONTAINER
Claim 2
Independent Claim
96 words
AN APPARATUS FOR WASHING CELLULOSIC PULP WHEREIN CELLULOSIC PULP IS CONTINUOUSLY SUPPLIED TO ONE END OF THE APPARATUS, CELLULOSIC PULP IN A MAJOR PORTION OF THE APPARATUS IS STATIONARY WHILE BEING WASHED, AND WASHED CELLULOSIC PULP IS CONTINUOUSLY DISCHARGED FROM THE OTHER END OF SAID APPARATUS COMPRISING: AN UPRIGHT CYLINDRICAL CONTAINER; MEANS FOR SUPPLYING THE PULP TO ONE END OF SAID CONTAINER; MEANS FOR DISCHARGING THE PULP FROM THE OTHER END OF THE CONTAINER; MEANS FOR SUPPLYING WASHING LIQUID TO SAID CONTAINER; MEANS FOR EXTRACTING TREATING LIQUID FROM THE PULP; THE MIDDLE PORTION OF SAID CONTAINER
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |