Automatic chalkline

Description

FIG. 1 is a front elevational view of an automatic chalkline showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a top plan view; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
947892 February 1910 Eastman
978064 December 1910 Sayles
1098033 May 1914 Friendship
1609777 December 1926 Senez
3309089 March 1967 Doyle
3427724 February 1969 Tracy
4662078 May 5, 1987 Gammon et al.
Patent History
Patent number: D313561
Type: Grant
Filed: Jun 29, 1987
Date of Patent: Jan 8, 1991
Inventor: Gregg Van Slyke (Inlet, NY)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Attorney: Jerry T. Kearns
Application Number: 7/67,442
Classifications
Current U.S. Class: Angle Or Direction (7) (D10/65)