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Trademark Assignment Abstract of Title

Total Assignments: 4
Serial #:
Filing Dt:
07/13/1981
Reg #:
Reg. Dt:
10/12/1982
Mark:
XTEN
Assignment: 1
Reel/Frame:
0476/0602   Recorded: 07/09/1984Pages: 2
Conveyance:
CHANGE OF NAME 19840608
Assignor:
Exec Dt:
06/26/1984
Entity Type:
UNKNOWN
Citizenship:
NONE
Assignee:
Entity Type:
UNKNOWN
Citizenship:
NONE
Correspondent:
COHEN, BRAME, ET AL.
3500 AMOCO BLDG.
1670 BROADWAY
DENVER, CO 80202
Assignment: 2
Reel/Frame:
0645/0310   Recorded: 04/03/1989Pages: 0
Conveyance:
SECURITY INTEREST
Assignor:
Exec Dt:
11/28/1988
Entity Type:
CORPORATION
Citizenship:
COLORADO
Assignee:
P.O. BOX 5168
DENVER, COLORADO 80217
Entity Type:
UNKNOWN
Citizenship:
NONE
Correspondent:
COLORADO NATIONAL BANK OF DENVER
P.O. BOX 5168
DENVER, CO 80217
Assignment: 3
Reel/Frame:
0691/0375   Recorded: 02/05/1990Pages: 0
Conveyance:
RELEASE BY SECURED PARTY OF THE SECURITY AGREEMENT RECORDED ON REEL 645, FRAME 310-319.
Assignor:
Exec Dt:
10/25/1989
Entity Type:
UNKNOWN
Citizenship:
NONE
Assignee:
Entity Type:
UNKNOWN
Citizenship:
NONE
Correspondent:
COHEN BRAME & SMITH
1800 ONE UNITED BANK CENTER
1700 LINCOLN STREET
DENVER, CO 80203
Assignment: 4
Reel/Frame:
1462/0893   Recorded: 05/21/1996Pages: 4
Conveyance:
NUNC PRO TUNC ASSIGNMENT
Assignor:
Exec Dt:
04/19/1996
Entity Type:
CORPORATION
Citizenship:
COLORADO
Assignee:
1625 BROADWAY, STE. 950
DENVER, COLORADO 80202
Entity Type:
CORPORATION
Citizenship:
COLORADO
Correspondent:
FISH & RICHARDSON P.C.
MARGARET A. BOULWARE
ONE RIVERWAY, STE. 1200
HOUSTON, TX 77056

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