Chain saw sharpening device

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Description

FIG. 1 is a perspective view showing my new design for a chain saw sharpening device it being understood that the broken lines are for illustrative purposes only.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a rear elevational view thereof.

FIG. 6 is a right side elevational view thereof.

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
2896481 July 1959 Hebbert
2900850 August 1959 Travis
3038355 June 1962 Granberg
3089351 May 1963 Nyberg
3172306 March 1965 Kephart, Jr.
3768341 October 1973 Fitzpatrick
Foreign Patent Documents
1527016 January 1970 DEX
Patent History
Patent number: D250086
Type: Grant
Filed: Nov 15, 1976
Date of Patent: Oct 31, 1978
Inventor: Elof Granberg (San Rafael, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: James M. Gandy
Attorney: Ernest H. McCoy
Application Number: 5/741,772
Classifications
Current U.S. Class: D 8/91
International Classification: D0805;