Foundation drain

Description

FIG. 1 is an end elevational view of a foundation drain showing my new design;

FIG. 2 is a top plan view thereof; the foundation drain is broken in the center to show indeterminate length;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is an opposite end elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
3850193 November 1974 Guzzo
3888087 June 1975 Bergsland
4604842 August 12, 1986 Sukup
4674249 June 23, 1987 Bennett, Jr.
4715743 December 29, 1987 Schmanski
4745716 May 24, 1988 Kuypers
4840515 June 20, 1989 Freese
5030343 July 9, 1991 Urriola
Patent History
Patent number: D329297
Type: Grant
Filed: Jan 29, 1990
Date of Patent: Sep 8, 1992
Inventor: Richard D. Smith (St. Louis, MO)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Polster, Lieder, Woodruff & Lucchesi
Application Number: 7/471,721