Arrangement and method in electric filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 19, 2017
Grant Date -
Nov 12, 2015
app pub date -
Jun 26, 2013
filing date -
Jun 28, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An arrangement and method in connection with an electric filter of a boiler plant, the electric filter comprising an insulator chamber. The arrangement comprises a first scavenging duct for conveying warm scavenging gas to the insulator chamber. Said first scavenging duct is connected to a channel conveying process gas in the boiler plant, which means that it is possible to supply process gas to the insulator chamber.
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 | |
---|---|---|
VALMET TECHNOLOGIES OY | ESPOO FINLAND ESPOO SOUTHERN FINLAND |
International Classification(s)

- 2013 Application Filing Year
- B03C Class
- 201 Applications Filed
- 183 Patents Issued To-Date
- 91.05 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Tolvanen, Juha | Tampere, FI | 3 | 5 |
# of filed Patents : 3 Total Citations : 5 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- B03C Class
- 22.34 % 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 |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 19, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 19, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Legal Events
Date | Code | Event | Description |
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Aug 11, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jun 26, 2018 | CC | CERTIFICATE OF CORRECTION | |
Feb 27, 2018 | I | Issuance | |
Feb 07, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 09, 2017 | P | Published | |
Aug 09, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WAKABAYASHI, KATSUHIRO;TATEISHI, KODAI;HIROOKA, YOSHIMI;AND OTHERS;REEL/FRAME:039681/0665 Owner name: KUBOTA CORPORATION, JAPAN Effective Date: Aug 09, 2016 |
May 26, 2016 | F | Filing | |
Aug 03, 2015 | PD | Priority Date |

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