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Patent
   D254686
Priority
Oct 12 1977
Filed
Oct 12 1977
Issued
Apr 08 1980
Expiry
Apr 08 1994
Inventors
Riley, Har…
Assg.orig
S. W. Hart…
Assg.curr
S. W. Hart…
Entity
unknown
Referenced by
2
References
4
Maint.:
n/a
The ornamental design for a solar water heating unit, as shown and described.

FIG. 1 is a top front right perspective;

FIG. 2 is a right side;

FIG. 3 is a back top left perspective;

FIG. 4 is a bottom perspective view thereof.
INVENTORS:

Riley, Harry J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D362056, Jun 19 1992 Combined low profile non-pressurized thermosyphon storage tank and collector unit of a solar water heater
D634043, Jun 22 2009 ILAND Green Technologies SA Lamp and photovoltaic device
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1889238,
4084578, Mar 24 1975 Yazaki Sogyo Kabushiki Kaisha Solar water heater of natural circulation type
D244607, Jul 29 1975 S. W. Hart & Co. Pty. Ltd. Solar water heating unit
D244608, Jul 29 1975 S. W. Hart & Co. Pty. Ltd. Solar water heating unit
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 12 1977S. W. Hart & Co., Pty. Ltd.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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