Apparatus and method for processing wood fibers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 14, 2024
Grant Date -
Jul 20, 2023
app pub date -
Aug 22, 2022
filing date -
Jan 2, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A refining member including a refining body with a refining surface including first and second refiner bars separated by first and second refiner grooves. The first and second refiner bars extend from respective first and second radially inward positions to respective first and second radially outward positions. The first and second refiner bars have a respective first and second height extending upward from a floor of a respective, adjacent first or second refiner groove. The second height is a minimum height of the second refiner bars and is spaced apart from the second radially inward position, with the second height being at least about 0.35 mm less than the first height. The first refiner bars are adapted to refine wood fibers and the second refiner bars are adapted to break up fiber bundles.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2022 Application Filing Year
- D21D Class
- 38 Applications Filed
- 13 Patents Issued To-Date
- 34.22 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21D Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 14, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 14, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 14, 2035 |
