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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
Issue Dt:
01/06/2015
Application #:
12995482
Filing Dt:
03/01/2011
Publication #:
Pub Dt:
11/03/2011
Inventors:
Graham Robertson, Brian Carr, Eric Cady
Title:
Improved Sifting Screen
Assignment: 1
Reel/Frame:
025880/0943Recorded: 03/01/2011Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/11/2011
Assignee:
5950 NORTH COURSE DRIVE
HOUSTON, TEXAS 77072
Correspondent:
BILL LEE
1 N WACKER DRIVE
SUITE 4400
CHICAGO, IL 60606
Assignment: 2
Reel/Frame:
025881/0043Recorded: 03/01/2011Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/11/2011
Assignee:
GRANTON PARK AVENUE
GRANTON, EDINBURGH
FIFE, UNITED KINGDOM EH5 1HT
Correspondent:
BILL LEE
1 N WACKER DR
SUITE 4400
CHICAGO, IL 60606
Assignment: 3
Reel/Frame:
025881/0081Recorded: 03/01/2011Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/11/2011
Assignee:
5950 NORTH COURSE DRIVE
HOUSTON, TEXAS 77072
Correspondent:
BILL LEE
1 N WACKER DR
SUITE 4400
CHICAGO, IL 60606
Assignment: 4
Reel/Frame:
049246/0764Recorded: 05/21/2019Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
04/15/2019
Exec Dt:
04/12/2019
Assignee:
5950 NORTH COURSE DRIVE
HOUSTON, TEXAS 77072
Correspondent:
STEPHANIE LONG
10001 RICHMOND AVENUE, OFFICE 3758
HOUSTON, TX 77042

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