AIR SUCTION DEVICE FOR TOILET DRAINAGE CHANNEL
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Apr 15, 2010
app pub date -
Mar 25, 2008
filing date -
Apr 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
An air suction device for a toilet drainage channel, capable of good and silent toilet flushing. The air suction device (200) for the toilet drainage channel (5) has air suction means for sucking air from the toilet drainage channel (5) connected to the downstream side of a water sealing part (4) of a toilet body (1). The air suction means has an ejector (30) serving as a negative pressure generator and also has a suction tank (80) connected between the ejector (30) and the toilet drainage channel (5). The air suction device (200) further has a control device (C) for controlling both execution of a suction stroke in which the suction tank (80) exhausts air into the toilet drainage channel (5). The control device (C) executes the air suction stroke after the start of the supply of flush water to the bowl (2) of the toilet body (1) and then executes the air exhaust stroke before the completion of the supply of the flush water to the bowl (2).
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 | |
---|---|---|
TOSTEM CORPORATION | 2-1-1 OJIMA KOTO-KU TOKYO 136-8535 |
International Classification(s)

- 2008 Application Filing Year
- E03D Class
- 98 Applications Filed
- 66 Patents Issued To-Date
- 67.35 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fukagawa, Masafumi | Aichi, JP | 5 | 15 |
# of filed Patents : 5 Total Citations : 15 | |||
Higuchi, Ken | Aichi, JP | 18 | 164 |
# of filed Patents : 18 Total Citations : 164 | |||
Hiraide, Keisuke | Aichi, JP | 3 | 6 |
# of filed Patents : 3 Total Citations : 6 | |||
Onishi, Naokazu | Aichi, JP | 2 | 9 |
# of filed Patents : 2 Total Citations : 9 | |||
Saito, Yuji | Aichi, JP | 222 | 1790 |
# of filed Patents : 222 Total Citations : 1790 |
Cited Art Landscape
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Patent Citation Ranking
- 3 Citation Count
- E03D Class
- 11.54 % this patent is cited more than
- 15 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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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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