Patent
   D307961
Priority
Feb 25 1987
Filed
Feb 25 1987
Issued
May 15 1990
Expiry
May 15 2004
Assg.orig
Entity
unknown
6
4
n/a
The ornamental design for a hot water tank helical coil cleaner, as shown and described.

FIG. 1 is a perspective view of a hot water tank helical coil cleaner showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Howell, Edward B.

Patent Priority Assignee Title
8276238, Jan 07 2011 Roller cover cleaner
9565923, Feb 18 2015 Water bottle
D362793, Feb 14 1994 Hand held mixer
D511600, Sep 24 2004 Paint roller cleaner
D513573, Jun 10 2004 MAXPAT TRADING & MARKETING FAR EAST LTD Skewer
D698658, Jan 15 2013 Bottle
Patent Priority Assignee Title
1500852,
1870333,
2610347,
234743,
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