Patent
   D904589
Priority
Aug 22 2019
Filed
Aug 22 2019
Issued
Dec 08 2020
Expiry
Dec 08 2035
Assg.orig
Entity
unknown
1
17
n/a
The ornamental design for a heat exchanger for water heater, as shown and described.

FIG. 1 is a front view of a heat exchanger for water heater showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 1; and,

FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 3.

Kondo, Masaki, Oohigashi, Takeshi, Wada, Norihide

Patent Priority Assignee Title
D936193, Jun 30 2020 Water heat exchanger
Patent Priority Assignee Title
20110017433,
20140190425,
20150176861,
20170059205,
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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Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 08 2019OOHIGASHI, TAKESHINORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240057 pdf
Aug 09 2019KONDO, MASAKINORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240057 pdf
Aug 09 2019WADA, NORIHIDENORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240057 pdf
Aug 22 2019NORITZ CORPORATION(assignment on the face of the patent)
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