Wave washer and variable-flow-rate valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 29, 2020
Grant Date -
Nov 5, 2020
app pub date -
Mar 7, 2018
filing date -
Mar 15, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.
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 | |
---|---|---|
CHUO HATSUJO KABUSHIKI KAISHA | 68 KAMISHIOTA NARUMI-CHO MIDORI-KU NAGOYA-SHI 458-8505 | |
IHI CORPORATION | 1-1 TOYOSU 3-CHOME KOTO-KU TOKYO 1358710 ?1358710 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Akiyama, Yuichiro | Koto-ku, JP | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 | |||
Ohtani, Satoshi | Koto-ku, JP | 8 | 71 |
# of filed Patents : 8 Total Citations : 71 | |||
Tanigaki, Michihiko | Koto-ku, JP | 3 | 5 |
# of filed Patents : 3 Total Citations : 5 | |||
Toya, Hideki | Midori-ku, JP | 13 | 78 |
# of filed Patents : 13 Total Citations : 78 | |||
Ueda, Naotada | Koto-ku, JP | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 |
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- F16K Class
- 0 % this patent is cited more than
- 5 Age
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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 29, 2028 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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