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Patent Assignment Details
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Reel/Frame:015819/0450   Pages: 3
Recorded: 09/22/2004
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Total properties: 1
1
Patent #:
Issue Dt:
06/01/2004
Application #:
10228892
Filing Dt:
08/27/2002
Publication #:
Pub Dt:
03/06/2003
Title:
PERFORATING GUN FIRING HEAD WITH VENTED BLOCK FOR HOLDING DETONATOR
Assignor
1
Exec Dt:
12/31/2001
Assignee
1
4200, 150 6TH AVENUE S.W.
CALGARY, ALBERTA, CANADA T2P 3Y7
Correspondence name and address
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY EAST
SUITE 1700
HOUSTON, TX 77060

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