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Patent
D904587
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Priority
Aug 22 2019
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Filed
Aug 22 2019
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Issued
Dec 08 2020
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Expiry
Dec 08 2035
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Assg.orig
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Entity
unknown
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0
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16
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n/a
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The ornamental design for a heat exchanger for water heater, as shown and described.
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FIG. 1 is a perspective view of a heat exchanger for water heater showing our new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 3;
FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 6; and,
FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 3.
Kondo, Masaki, Oohigashi, Takeshi, Wada, Norihide
Patent |
Priority |
Assignee |
Title |
Patent |
Priority |
Assignee |
Title |
20110017433, |
|
|
|
20140190425, |
|
|
|
20150176861, |
|
|
|
20170299274, |
|
|
|
20170321970, |
|
|
|
20170350618, |
|
|
|
20180087805, |
|
|
|
20180306529, |
|
|
|
20190186784, |
|
|
|
20190186785, |
|
|
|
20190195563, |
|
|
|
D831805, |
Jun 09 2017 |
Kogaku Technology Inc. |
Vertical heating module |
D832413, |
Jun 09 2017 |
Kogaku Technology Inc. |
Air-duct type heating module |
EP2420756, |
|
|
|
JP2017211115, |
|
|
|
JP60144556, |
|
|
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a