Bottom grate of a crusher or drum chipper and method of producing the bottom grate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 25, 2017
Grant Date -
Jun 19, 2014
app pub date -
May 4, 2012
filing date -
May 6, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A bottom grate for a crusher for chipping or comminuting material which includes: support ribs each substantially perpendicular to the rotational axis of the crusher; grate blades mounted to the support ribs and substantially parallel to the rotational axis, wherein the grate blades are releasably mounted to the support ribs and the grate blades each have a cutting edge proximate to a cutting or crushing rotor in the crusher; pulling members extending between two of the support members, wherein the pulling members are in tension and the tension in the pulling members binds the blades in the support members.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ANDRITZ OY | TAMMASAARENKATU 1 00180 HELSINKI FINLAND |
International Classification(s)

- 2012 Application Filing Year
- B02C Class
- 384 Applications Filed
- 311 Patents Issued To-Date
- 80.99 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kaljunen, Markku | Lahti, FI | 2 | 5 |
# of filed Patents : 2 Total Citations : 5 | |||
Kokko, Pekka | Hollola, FI | 29 | 101 |
# of filed Patents : 29 Total Citations : 101 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B02C Class
- 0 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 25, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 25, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Aug 30, 2021 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 30, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 25, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jul 25, 2021 |
Mar 15, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 25, 2017 | I | Issuance | |
Jul 03, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 19, 2014 | P | Published | |
Dec 09, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KALJUNEN, MARKKU;KOKKO, PEKKA;REEL/FRAME:032139/0456 Owner name: ANDRITZ OY, FINLAND Effective Date: Dec 09, 2013 |
May 04, 2012 | F | Filing | |
May 06, 2011 | PD | Priority Date |

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