Cutting bit and extraction tool for same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 23, 2018
Issued Date -
N/A
app pub date -
Apr 11, 2016
filing date -
Apr 10, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cutting bit for a bit assembly secured to a cutter head includes a cutting end, a shank extending along a bit axis, and a shoulder positioned between the cutting end and the shank. The shoulder includes an outer edge defining a perimeter, a shoulder end surface defining a shoulder plane, a first inclined surface and a second inclined surface. The first inclined surface is positioned between the outer edge and the shoulder end surface. The first inclined surface extends along the perimeter and is oriented at a first acute angle relative to the shoulder plane. The second inclined surface is positioned between the shoulder end surface and the first inclined surface. The second inclined surface is oriented at a second acute angle relative to the shoulder plane, and the second acute angle is smaller than the first acute angle.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- E21C Class
- 125 Applications Filed
- 90 Patents Issued To-Date
- 72 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21C Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 23, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 23, 2029 |
