Core drill bit
Description
FIG. 1 is an isometric view of a core drill bit showing my new design;
FIG. 2 is one side view thereof;
FIG. 3 is another side view thereof;
FIG. 4 is another side view thereof;
FIG. 5 is another side view thereof, all sides apperring diffrently;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a front view thereof.
Referenced Cited
U.S. Patent Documents
RE23539 | August 1952 | Tilden |
1857585 | May 1932 | Drooks, Sr. |
3945069 | March 23, 1976 | Cecil |
Patent History
Patent number: D363294
Type: Grant
Filed: Sep 26, 1994
Date of Patent: Oct 17, 1995
Inventor: Albert D. Ellis (Clarkston, GA)
Primary Examiner: Antoine Duval Davis
Attorney: Jerome Moore
Application Number: 0/29,025
Type: Grant
Filed: Sep 26, 1994
Date of Patent: Oct 17, 1995
Inventor: Albert D. Ellis (Clarkston, GA)
Primary Examiner: Antoine Duval Davis
Attorney: Jerome Moore
Application Number: 0/29,025
Classifications
Current U.S. Class:
Cutting Tool, E.g., Drill Bit, Etc. (D15/139)