Filter holder


FIG. 1 is a perspective view of a filter holder showing my new design;

FIG. 2 is a side elevational view thereof, the opposite and adjacent sides being substantially the same in appearance;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a vertical sectional view thereof, taken along line AA of FIG. 3.

Referenced Cited
U.S. Patent Documents
D220119 March 1971 Glickman et al.
D250911 January 23, 1979 McJunkin, Jr.
D250968 January 30, 1979 Combest
D271043 October 18, 1983 Parker
D286444 October 28, 1986 Jankowski et al.
2962583 November 1960 Balser
3871752 March 1975 Habinger
Other references
  • Display World-Dec. 1961, p. 16-Lighting Services Advertisement-Std. Spot #500-5. Stonco Lighting catalogue-1972, p. 63-Baffle Accessory, No. 2059.
Patent History
Patent number: D291368
Type: Grant
Filed: Jul 10, 1984
Date of Patent: Aug 11, 1987
Assignee: THORN EMI plc (London)
Inventors: John A. Letchford (Enfield), Alex L. Halberstadt (London)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Fleit, Jacobson, Cohn & Price
Application Number: 6/629,433