USD200340S - Duplex filter - Google Patents

Description

United States Patent 0 Des. 200,340 Patented Feb. 16, 1965 DUPLEX FILTER Frederick Kraissl, Jr., 244 Kinderkamack Road, North Hackensack, NJ.

Filed Feb. 21, 1963, Ser. No. 73,676

Term of patent 14 years (CI. D461) FIG. 1 is a front elevation of the duplex filter showing my new design. The rear is substantially the same as the front except for the omission of the projecting port as best seen in FIG. 3;

FIG. 2 is a side elevation of one of the identical sides of the duplex filter; and

FIG. 3 is a plan view of the filter.

The bottom is substantially plain. In the center of the bottom of each depending leg, an opening is present.

I claim:

The ornamental design for a duplex filter, as shown and described.

References Cited by the Examiner UNITED STATES PATENTS D. 126,720 4/41 Kraissl D461 D. 126,731 4/41 Kraissl D461 D. 136,021 4/43 Kraissl D46-1 1,685,303 9/28 Voorheis.

FOREIGN PATENTS 84,015 5/21 Austria.

WALLACE R. BURKE, Acting Primary Examiner.

ADELINE B. HANNAH, CONRAD A. BOUSQUET, Examiners.

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