Patent
   D916257
Priority
Aug 22 2019
Filed
Aug 22 2019
Issued
Apr 13 2021
Expiry
Apr 13 2036
Assg.orig
Entity
unknown
2
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 with the internal parts omitted; and,

FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 4 with the internal parts omitted.

The broken lines shown in the drawings represent portions of the heat exchanger for water heater that form no part of the claimed design.

Kondo, Masaki, Oohigashi, Takeshi, Wada, Norihide

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Aug 08 2019OOHIGASHI, TAKESHINORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240042 pdf
Aug 09 2019KONDO, MASAKINORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240042 pdf
Aug 09 2019WADA, NORIHIDENORITZ CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0501240042 pdf
Aug 22 2019NORITZ CORPORATION(assignment on the face of the patent)
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