Patent
   D415676
Priority
Dec 04 1997
Filed
May 28 1998
Issued
Oct 26 1999
Expiry
Oct 26 2013
Assg.orig
Entity
unknown
36
3
n/a
The ornamental design for a security screw, as shown and described.

FIG. 1 is a perspective view of a first screw in accordance with the new design;

FIG. 2 is a top view;

FIG. 3 is a side view;

FIG. 4 is a sectional view along line 4--4 of FIG. 3;

FIG. 5 is a perspective view of a second screw in accordance with the new design;

FIG. 6 is a top view;

FIG. 7 is a side view;

FIG. 8 is a sectional view along line 8--8 of FIG. 7;

FIG. 9 is a perspective view of a third screw in accordance with the new design;

FIG. 10 is a top view;

FIG. 11 is a side view;

FIG. 12 is a sectional view along line 12--12 of FIG. 11;

FIG. 13 is a perspective view of a fourth screw in accordance with the new design;

FIG. 14 is a top view;

FIG. 15 is a side view;

FIG. 16 is a sectional view along line 16--16 of FIG. 15;

FIG. 17 is a perspective view of a fifth screw in accordance with the new design;

FIG. 18 is a top view;

FIG. 19 is a side view;

FIG. 20 is a sectional view along line 20--20 of FIG. 19;

FIG. 21 is a perspective view of a sixth screw in accordance with the new design;

FIG. 22 is a top view;

FIG. 23 is a side view;

FIG. 24 is a sectional view along line 24--24 of FIG. 23;

FIG. 25 is a perspective view of a seventh screw in accordance with the new design;

FIG. 26 is a top view;

FIG. 27 is a side view;

FIG. 28 is a sectional view along line 28--28 of FIG. 27;

FIG. 29 is a perspective view of an eighth screw in accordance with the new design;

FIG. 30 is a top view;

FIG. 31 is a side view; and,

FIG. 32 is a sectional view along line 32--32 of FIG. 31.

Negishi, Shigeo, Kanemaru, Shigeru

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Patent Priority Assignee Title
3498173,
4459074, Dec 15 1981 Russell, Burdsall & Ward Corporation Socket drive
D285651, May 23 1983 Iwata Bolt Kogyo Kabushiki Kaisha; Kabushiki Kaisha Suzuki Rashi Seisakusho; Sony Kabushiki Kaisha Bolt
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 12 1998NEGISHI, SHIGEOMampay Screw Works LtdASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0092940641 pdf
May 12 1998KANEMARU, SHIGERUMampay Screw Works LtdASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0092940641 pdf
May 28 1998Mampay Screw Works Ltd(assignment on the face of the patent)
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