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Patent Assignment Assignor Details
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Assignor Name : BURKHALTER, JOHN F.
Total Assignments: 9
Assignment: 1
Reel/Frame:003922/0190   Pages: 1
Recorded: 11/02/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
10/06/1981
2
Exec Dt:
10/06/1981
3
Exec Dt:
10/06/1981
Assignee
1
A CORP. OF DE
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06282321
Correspondence name and address
EDWARD F. SHERER
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73533
Assignment: 2
Reel/Frame:004134/0844   Pages: 2
Recorded: 06/07/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
05/24/1983
2
Exec Dt:
05/24/1983
3
Exec Dt:
05/24/1983
Assignee
1
OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06489909
Correspondence name and address
EDWARD F. SHERER
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 3
Reel/Frame:004264/0358   Pages: 2
Recorded: 04/06/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
04/03/1984
2
Exec Dt:
04/03/1984
Assignee
1
A CORP. OF DE
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06592989
Correspondence name and address
G. KEITH DEBRUCKY
PATENT SECTION
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 4
Reel/Frame:004362/0497   Pages: 2
Recorded: 02/19/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
02/12/1985
2
Exec Dt:
02/12/1985
Assignee
1
CORP. OF DE.
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06680428
Correspondence name and address
ROBERT A. KENT
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 5
Reel/Frame:004378/0121   Pages: 2
Recorded: 03/25/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
03/20/1985
2
Exec Dt:
03/20/1985
Assignee
1
A CORP OF DE
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06705599
Correspondence name and address
ROBERT A. KENT
HALLIBURTON SERVICES
P.O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 6
Reel/Frame:004380/0104   Pages: 3
Recorded: 04/01/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
03/26/1985
2
Exec Dt:
03/20/1985
Assignee
1
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06703377
Correspondence name and address
ROBERT A. KENT
HALLIBURTON SERVICES, P.O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 7
Reel/Frame:004636/0287   Pages: 2
Recorded: 11/21/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
11/19/1986
2
Exec Dt:
11/19/1986
Assignee
1
DUNCAN, STEPHENS, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06912757
Correspondence name and address
ROBERT A. KENT
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73536-0102
Assignment: 8
Reel/Frame:004874/0091   Pages: 2
Recorded: 05/20/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
05/16/1988
2
Exec Dt:
05/16/1988
Assignee
1
DUNCAN
STEPHENS, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
07150123
Correspondence name and address
ROBERT A. KENT
P.O. DRAWER 1431
DUNCAN, OK 73536
Assignment: 9
Reel/Frame:005841/0498   Pages: 3
Recorded: 09/23/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
09/12/1991
2
Exec Dt:
09/12/1991
Assignee
1
A CORP. OF DELAWARE
DUNCAN, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
07750151
Correspondence name and address
THOMAS R. WEAVER
HALLIBURTON SERVICES
P. O. DRAWER 1431
DUNCAN, OK 73536-0102

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