Patent
   D326144
Priority
Dec 06 1990
Filed
Dec 06 1990
Issued
May 12 1992
Expiry
May 12 2006
Assg.orig
Entity
unknown
1
5
n/a
The ornamental design for a room air filter, as shown and described.

FIG. 1 is a top, front and side perspective view of a room air filter, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image of that shown; and,

FIG. 6 is a rear elevational view thereof.

Havrilla, George S.

Patent Priority Assignee Title
D900991, Jan 23 2019 DONGGUAN INNOVATION LIGHTING CO ,LTD Aroma diffuser
Patent Priority Assignee Title
3853519,
4075106, May 07 1976 Filtering device
4178346, Jun 19 1978 Incense burner device
4628970, Nov 22 1983 ROSENBERG TECHNOLOGIES, INC Apparatus for refilling compressed-gas bottles
CA1169363,
/
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 18 1992HAVRILLA, GEORGE S CENTERCORE, INC A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0061900053 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule