Patent
   D385567
Priority
Jul 10 1996
Filed
Jul 10 1996
Issued
Oct 28 1997
Expiry
Oct 28 2011
Assg.orig
Entity
unknown
1
11
n/a
The ornamental design of a drill sharpening device, as shown and described.

FIG. 1 is a perspective view of the drill sharpening device;

FIG. 2 is a front elevation view of the drill sharpening device;

FIG. 3 is a left side elevation view of the drill sharpening device;

FIG. 4 is a rear elevation view of the drill sharpening device;

FIG. 5 is a right side elevation view of the drill sharpening device;

FIG. 6 is a top plan view of the drill sharpening device; and,

FIG. 7 is a bottom plan view of the drill sharpening device.

Bernard, David A.

Patent Priority Assignee Title
D969889, Dec 13 2019 TECOMEC S.R.L. Sharpening machine
Patent Priority Assignee Title
2109308,
4001975, Jul 09 1975 Darex Corporation Twist drill sharpener and aligning fixture
4031672, Apr 01 1974 The Black and Decker Manufacturing Company Sharpen twist drills or the like
4093247, Jul 09 1975 Darex Corporation Chuck
4471581, Sep 09 1982 Darex Corporation Universal twist drill sharpener apparatus
4485596, Sep 09 1982 Darex Corporation Twist drill point splitting/web thinning apparatus
4916866, Feb 09 1989 Darex Corporation End mill sharpener
5097634, Dec 08 1989 Tool grinder apparatus and method
5179809, Apr 23 1990 WINSLOW ENGINEERING, INC Drill grinding machine
5400546, Mar 19 1993 Darex Corporation Precision twist drill sharpener/point splitting machine
230045,
////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 10 1996Darex Corporation(assignment on the face of the patent)
Oct 15 1996BERNARD, DAVID A Darex CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0081920346 pdf
Jan 27 1998Darex CorporationBERNARD, DAVID A CORRECTIVE ASSIGNMENT TO CORRECT STREET ADDRESS OF RECEIVING PARTY, PREVIOUSLY RECORDED AT REEL 9005, FRAME 0083 0093960359 pdf
Jan 27 1998Darex CorporationBERNARD, DAVID A ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0090050083 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule