Air bar

- W. R. Grace & Co.-Conn.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top, front and right side perspective view of an air bar showing my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a top plan view; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3549070 December 1987 Frost
3873013 March 1975 Stibbe
3979038 September 7, 1976 Karlsson
4021931 May 10, 1977 Russ et al.
4197971 April 15, 1980 Stibbe
4197973 April 15, 1980 Daane
4201323 May 6, 1980 Stibbe et al.
4265384 May 5, 1981 Daane
Patent History
Patent number: D322260
Type: Grant
Filed: Aug 5, 1988
Date of Patent: Dec 10, 1991
Assignee: W. R. Grace & Co.-Conn. (Lexington, MA)
Inventor: Richard J. Wimberger (DePere, WI)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorneys: Hugh D. Jaeger, Kevin Lemack
Application Number: 7/229,093
Classifications
Current U.S. Class: D15/1441