SLUICE GATE
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
Apr 3, 2025
app pub date -
Jan 21, 2023
filing date -
Jan 21, 2023
priority date (Note) -
Published
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A sluice gate includes: a hinge coupled to the top of the discharge port of a sidewall of the water reservoir unit; a flap gate coupled to the hinge unit and rotating up and down around the hinge unit, wherein the flap gate is rotated downward to close the discharge port when overlapped with the sidewall of the water reservoir unit and is rotated upward to open the discharge port; a fan-shaped pull string pulley coupled to an upwardly facing surface of the flap gate when the flap gate is horizontal; a pull string lifting means installed above the water reservoir unit; and a pull string having one end connected to the pull string lifting means and the other end coupled to the flap gate, wherein a portion of the pull string is wound around the outer periphery of the pull string pulley that moves the flap gate.
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 | |
---|---|---|
LEE MISUK | 7-9 MEONUGEUM-RO 252BEON-GIL YEONSU-GU INCHEON 21925 |
International Classification(s)

- 2023 Application Filing Year
- F16K Class
- 991 Applications Filed
- 309 Patents Issued To-Date
- 31.19 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
CHOI, Nuri | Incheon, KR | 4 | 3 |
# of filed Patents : 4 Total Citations : 3 | |||
CHOI, Sori | Jinju-si, Gyeongsangnam-do, KR | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
LEE, Misuk | Incheon, KR | 2 | 93 |
# of filed Patents : 2 Total Citations : 93 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F16K Class
- 0 % this patent is cited more than
- < 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 3, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 3, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 3, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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