Baseball pitching practice device

Description

FIG. 1 is a front elevational view of a baseball pitching practice device showing my new design;

FIG. 2 is a right side elevational view, the opposite side being a mirror image;

FIG. 3 is a top plan view, the bottom view being a mirror image;

FIG. 4 is a rear elevational view; and

FIG. 5 is a front perspective view.

Referenced Cited
U.S. Patent Documents
3001795 September 1961 Johnson
4188031 February 12, 1980 Fox
4415154 November 15, 1983 Engelhardt
4473227 September 25, 1984 Klaus
Patent History
Patent number: D311031
Type: Grant
Filed: Oct 2, 1987
Date of Patent: Oct 2, 1990
Inventor: Leandre Poitras (Beauport, Quebec)
Primary Examiner: A. Hugo Word
Assistant Examiner: R. T. Seifert
Application Number: 7/103,801
Classifications
Current U.S. Class: D21/5