Patent
   D306901
Priority
Jan 29 1988
Filed
Jan 29 1988
Issued
Mar 27 1990
Expiry
Mar 27 2004
Assg.orig
Entity
unknown
0
3
n/a
The ornamental design for an air sampling filter cassette, as shown.

FIG. 1 is a perspective view of an air sampling filter cassette showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a left side elevational view thereof.

Popick, Leonard I.

Patent Priority Assignee Title
Patent Priority Assignee Title
3295359,
3700411,
4277259, Feb 11 1980 THERMEDICS INC Air-sampling cartridge
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