Security door

The ornamental design for a security door, as shown and described.

FIG. 1 is a front view of the invention thereof;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a left side view thereof.

Patent	Priority	Assignee	Title
D910876,	Nov 01 2019	Larson Manufacturing Company of South Dakota, Inc.; LARSON MANUFACTURING COMPANY OF SOUTH DAKOTA, INC	Security door grill
D911554,	Nov 01 2019	Larson Manufacturing Company of South Dakota, Inc.; LARSON MANUFACTURING COMPANY OF SOUTH DAKOTA, INC	Security door grill

Patent	Priority	Assignee	Title
5979137,	Nov 24 1997	Columbia Manufacturing Corp.	Security door
D341430,	Dec 12 1991	Commonwealth of Puerto Rico	Metal door with grille
D435668,	Jan 31 2000		Door overlay
D463037,	Nov 15 2001		Security door

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Feb 14 2003		Richard, Heasley	(assignment on the face of the patent)

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