Drill bit sharpener
Description
FIG. 1 is a left side elevational view of the drill bit sharpener showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a top plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D162593 | March 1951 | Sykes |
1044036 | November 1912 | Fassett |
- Institutions Magazine, May 1960, p. 189, "Intedge" Knife Serrator. Hardware Age, Jul. 1984, p. 22, "Gamn'" Chain Saw Sharpener.
Patent History
Patent number: D309559
Type: Grant
Filed: Oct 2, 1987
Date of Patent: Jul 31, 1990
Inventor: Daniel Vaccaro (Chula Vista, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Attorney: Charles C. Logan, II
Application Number: 7/106,329
Type: Grant
Filed: Oct 2, 1987
Date of Patent: Jul 31, 1990
Inventor: Daniel Vaccaro (Chula Vista, CA)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Attorney: Charles C. Logan, II
Application Number: 7/106,329
Classifications
Current U.S. Class:
D 8/91