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Patent
   D277310
Priority
Dec 15 1981
Filed
Jun 11 1982
Issued
Jan 22 1985
Expiry
Jan 22 1999
Inventors
Jacobsson,…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
1
References
6
Maint.:
n/a
The ornamental design for an electrostatic filter, substantially as shown and described.

FIG. 1 is a front perspective view of an electrostatic filter showing my new design;

FIG. 2 is a rear perspective view thereof.
INVENTORS:

Jacobsson, Bertil

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D646369, Jul 22 2008 Donaldson Company, Inc Filter cartridge
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3861894,
3930818, Dec 20 1974 Air cleaner
3954427, Oct 16 1973 SNYDERGENERAL CORPORATION, 3620 TRAMMELL CROW CENTER, DALLAS, TX , A CORP OF MN Ventilation and filter module for cooking units
4301095, Aug 18 1980 Product Enterprise, Inc. Air freshener dispenser
D248869, Jan 14 1977 Air purifier
D258686, Jan 15 1979 Combined air filter and freshener
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