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Patent
   D273556
Priority
Jun 03 1981
Filed
Jun 03 1981
Issued
Apr 24 1984
Expiry
Apr 24 1998
Inventors
Henry, Car…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
3
References
4
Maint.:
n/a
The ornamental design for a screw driver shaft, as shown and described.

FIG. 1 is a top plan view of a screw driver shaft showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is an opposite end elevational view thereof.

The broken lines are shown for illustrative purposes.
INVENTORS:

Henry, Carl M.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D371947, Sep 19 1994 EBI, LLC Screwdriver shaft
D913070, Feb 05 2018 Inertial ring for hand tool
D927552, Nov 14 2018 Motor shaft
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1366341,
2323018,
2920489,
2936010,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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