Baseball training article

Description

FIG. 1 is a front elevational view of a baseball training article showing my new design;

FIG. 2 is a side elevational view thereof; the side opposite being substantially a mirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D171589 March 1954 Gilman
D171590 March 1954 Gilman
183045 October 1876 Dunlop
243132 January 1977 Lowrey
D291907 September 15, 1987 George
368724 August 1987 Loucks
1477460 December 1923 Smith
1562176 May 1924 Latina
1868822 July 1932 Goldkind
2547388 December 1948 Griffin
2695999 September 1951 Arnold
2745119 May 1956 Whipple
2952021 August 1958 Finn
3735442 May 1973 Lukas
4208051 June 17, 1980 Robertson
4516774 May 14, 1985 Nankivell
4617684 October 21, 1986 Green
Foreign Patent Documents
444407 May 1927 DE2
148509 June 1981 DEX
598833 May 1978 CHX
Other references
  • Handbook of Designs and Devices C. P. Hornung .COPYRGT.1959, p. 46, "Triangular Variant" #411 right col. ctr. photo.
Patent History
Patent number: D314599
Type: Grant
Filed: Oct 13, 1987
Date of Patent: Feb 12, 1991
Inventor: Peter C. Birmingham (Syracuse, NY)
Primary Examiner: Bernard Ansher
Assistant Examiner: Alicia A. Farrell
Law Firm: Wall and Roehrig
Application Number: 7/107,531
Classifications
Current U.S. Class: D21/213