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Patent
D921835
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Priority
Apr 24 2020
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Filed
Apr 24 2020
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Issued
Jun 08 2021
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Expiry
Jun 08 2036
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Assg.orig
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Entity
unknown
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4
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12
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n/a
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The ornamental design for a pre-filter for water treatment system, as shown and described.
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FIG. 1 is a top, front perspective view of the pre-filter for water treatment system;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a bottom, rear perspective view thereof.
Miles, Michael E., Lautzenheiser, Terry L., Schlenk, Daniel L.
Patent |
Priority |
Assignee |
Title |
4560477, |
Nov 22 1982 |
P M FILTER KONSTRUKTIONEN AG INDUSTRIESTRASSE |
Separator for filter cartridges |
D421649, |
Oct 29 1998 |
Donaldson Company, Inc |
Filter element |
D470216, |
Mar 28 2002 |
Donaldson Company, Inc |
Filter element |
D481101, |
Nov 07 2002 |
Donaldson Company, Inc |
Filter element |
D497972, |
Jul 01 2003 |
Parker Intangibles, LLC |
Filter element |
D571433, |
May 24 2007 |
GAG/Sim-Tech Filters, Inc. |
Flow-through filter cartridge |
D609775, |
Feb 05 2008 |
W L GORE & ASSOCIATES, INC |
Cylindrical cage for a filter |
D724179, |
Mar 10 2014 |
GVS FILTRATION INC |
Oil filter |
D746969, |
Mar 15 2013 |
Illinois Tool Works Inc. |
Filter for an air filtration device |
D759195, |
Oct 08 2014 |
Sumitomo Electric Industries, Ltd. |
Filter element for ballast water treatment |
D770592, |
May 05 2015 |
Cummins Filtration IP, Inc |
Filter element |
D772379, |
Jan 06 2015 |
A J ANTUNES & COMPANY |
Insert for fluid treatment cartridge with fluid treatment cartridge |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a