US3016324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing wood pulp
Assignee: Bauer Brothers Co
•
Filing: 1957-03-07
•
Granted: 1962-01-09
•
Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Clinton K Textor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:24
CPC Classifications
B; B03; B03B; B03B9/00; D; D21; D21B; D21B1/00; D21B1/04; D21B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD OF MAKING WOOD PULP INCLUDING THE STEPS OF CHIPPING THE RAW WOOD, DEFIBERING THE WOOD CHIPS BY SUCCESSIVE COMPRESSING AND SHEARING ACTION, IMPREGNATING THE DEFINED CHIPS WITH A CHEMICAL SOLUTION IMMEDIATELY AS THE COMPRESSING AND SHEARING ACTION IS COMPLETED TO FURTHER WEAKEN THE COHESIVE QUALITY OF THE CHIP FIBERS, FURTHER DEFIBERING THE DEFIBERED WOOD CHIPS, SCREENING THE RESULTANT MATERIAL, RETURNING THE REJECTED MATERIAL FOR FURTHER DEFIBERING AND PASSING ACCEPTABLE MATERIAL THROUGH A CENTRIFUGAL CLEANER.
Claim 2
Independent Claim
76 words
A METHOD OF MAKING WOOD PULP INCLUDING THE STEPS OF CHIPPING THE RAW WOOD, DEFIBERING THE WOOD CHIPS BY SUCCESSIVE COMPRESSING AND SHEARING ACTION, IMPREGNATING THE DEFINED CHIPS WITH A CHEMICAL SOLUTION IMMEDIATELY AS THE COMPRESSING AND SHEARING ACTION IS COMPLETED TO FURTHER WEAKEN THE COHESIVE QUALITY OF THE CHIP FIBERS, FURTHER DEFIBERING THE DEFIBERED WOOD CHIPS, SCREENING THE RESULTANT MATERIAL, RETURNING THE REJECTED MATERIAL FOR FURTHER DEFIBERING AND PASSING ACCEPTABLE MATERIAL THROUGH A CENTRIFUGAL CLEANER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |