PERCUSSIVE ROCK DRILL BIT
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 31, 2016
app pub date -
Apr 11, 2014
filing date -
May 3, 2013
priority date (Note) -
Published
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
A percussive rock drill bit includes a head provided at one end of a rearwardly projecting skirt. The head has an outer collar that defines, in part, a rearwardly projecting recess formed in the forwardmost region of the head. Peripheral gauge buttons are provided at the collar to surround side and front facing buttons formed at the head recess. The drill bit is effective to provide stabilised cutting to minimise lateral deflection.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SANDVIK INTELLECTUAL PROPERTY AB | S-81 81 SANDVIKEN |
International Classification(s)

- 2014 Application Filing Year
- E21B Class
- 4199 Applications Filed
- 3550 Patents Issued To-Date
- 84.55 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
MATTSON, Per | Sandviken, SE | 4 | 16 |
# of filed Patents : 4 Total Citations : 16 | |||
PERSSON, Magnus | Sandviken, SE | 87 | 1481 |
# of filed Patents : 87 Total Citations : 1481 |
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Patent Citation Ranking
- 6 Citation Count
- E21B Class
- 8.29 % this patent is cited more than
- 9 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 30, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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