Erasable four-color pen

Description

FIG. 1 is a front, top and side perspective view of the erasable four-color pen embodying the design of the present invention;

FIG. 2 is a front end elevational view thereof;

FIG. 3 is a rear end elevational view thereof; and,

FIG. 4 is a side elevational view thereof, the side opposite and the top and bottom all being identical to the side shown in FIG. 4.

Referenced Cited
U.S. Patent Documents
D155613 October 1949 Kahn
D338039 August 3, 1993 Takahashi
709211 September 1902 Elkan
1765151 June 1930 Hansen
2926630 March 1960 Csaby
4056325 November 1, 1977 Maruyama
4123179 October 31, 1978 Pacheco
4971628 November 20, 1990 Loftin
4973672 November 27, 1990 Bauer
5006171 April 9, 1991 Mecke
Foreign Patent Documents
806411 July 1949 DEX
Patent History
Patent number: D353619
Type: Grant
Filed: Feb 5, 1993
Date of Patent: Dec 20, 1994
Inventor: Timothy D. Kneller (Dallas, TX)
Primary Examiner: Martie Thompson
Attorney: Terry M. Gernstein
Application Number: 0/4,492