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Patent
   D490575
Priority
Apr 03 2003
Filed
Apr 03 2003
Issued
May 25 2004
Expiry
May 25 2018
Inventors
Henson, Wi…
Assg.orig
AMERICAN E…
Assg.curr
American E…
Entity
unknown
Referenced by
4
References
11
Maint.:
n/a
The ornamental design for a descender apparatus, as shown and described.

FIG. 1 is a front and right side perspective view of a descender apparatus showing my new design;

FIG. 2 is a right side elevation thereof;

FIG. 3 is a left side view of the descender apparatus;

FIG. 4 is a front view of the descender apparatus; and,

FIG. 5 is a top plan view thereof.
INVENTORS:

Henson, William E.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D523588, Jun 20 2003 AMERICAN ESCAPE SYSTEMS, INC Combined body harness and descender apparatus
D587410, Jul 17 2007 D B INDUSTRIES, INC Self-retracting lifeline housing
D651362, Feb 02 2009 TRACTEL S A S Descender
D656686, Mar 17 2010 LR ASSET MANAGEMENT, LLC Auto-arresting safety device
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1494467,
2409767,
4171795, Sep 02 1977 Safety line and mechanism
4523664, Jun 08 1983 Safety descent device
4877110, Oct 14 1988 D B INDUSTRIES, INC , A CORP OF MN Safety device with retractable lifeline
4986390, Dec 08 1986 Portable slow descender
5127490, Aug 22 1991 Emergency descent device
638950,
744094,
797903,
801526,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 30 2003HENSONM, WILLIAM E AMERICAN ESCAPE SYSTEMS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0139380723 pdf
Jan 30 2003HENSON, WILLIAM E AMERICAN ESCAPE SYSTEMS, INC , A MICHIGAN CORPORATIONTO CORRECT ASSIGNMENT COVER SHEET PREVIOUSLY RECORDED ON 04032003, REEL FRAME 013938 07230139970680 pdf
Apr 03 2003American Escape Systems, Inc.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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