Room air filter

Description

FIG. 1 is a top, front 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.

The conventional electrical cord is shown fragmentarily in FIGS. 2, 4, 5, and 6 for ease of illustration.

Referenced Cited
U.S. Patent Documents
D105274 July 1937 Fuerst
D148226 December 1947 Galehouse
D257898 January 13, 1981 Schoze et al.
D316459 April 23, 1991 Kira
D319552 September 3, 1991 Christensen
3156383 November 1964 Melli
3464546 September 1969 Thomka
3853519 December 1974 York, Jr.
4075106 February 21, 1978 Yamazaki
4178346 December 11, 1979 Allen et al.
4628970 December 16, 1986 Vasella
Foreign Patent Documents
1169363 June 1984 CAX
Other references
  • Sporty's Tool Shop Cat., .COPYRGT.1983, p. 39, Well Light Assembly, bottom right side of page. Devine Design Adv. Cat., .COPYRGT.1986, p. 10, Light A, lower left side of page.
Patent History
Patent number: D328946
Type: Grant
Filed: Dec 6, 1990
Date of Patent: Aug 25, 1992
Inventor: George S. Havrilla (Bushkill, PA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Richard S. Roberts
Application Number: 7/624,279