Patent
   D490539
Priority
Feb 14 2003
Filed
Feb 14 2003
Issued
May 25 2004
Expiry
May 25 2018
Assg.orig
Entity
unknown
2
4
n/a
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.

Heasley, Richard

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
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 14 2003Richard, Heasley(assignment on the face of the patent)
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