skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 4
Patent #:
Issue Dt:
12/25/2012
Application #:
13193170
Filing Dt:
07/28/2011
Publication #:
Pub Dt:
11/17/2011
Inventors:
Stefan Alexandru Stoian, Carl Keith Smith
Title:
DRILLING FLUID AND METHODS
Assignment: 1
Reel/Frame:
026671/0964Recorded: 07/29/2011Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
04/09/2008
Exec Dt:
04/09/2008
Assignee:
1110, 640 - 8TH AVENUE SW
CALGARY, CANADA T2P 1G7
Correspondent:
ROSEANN B. CALDWELL, BENNETT JONES LLP
4500 BANKERS HALL EAST
855-2ND STREET SW
CALGARY, T2P 4K7 CANADA
Assignment: 2
Reel/Frame:
027151/0676Recorded: 10/31/2011Pages: 2
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
03/04/2010
Assignee:
1110, 640 - 8TH AVENUE SW
CALGARY, CANADA T2P 1G7
Correspondent:
ROSEANN B. CALDWELL, BENNETT JONES LLP
4500 BANKERS HALL EAST
855-2ND STREET SW
CALGARY, T2P 4K7 CANADA
Assignment: 3
Reel/Frame:
032267/0036Recorded: 02/21/2014Pages: 9
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
11/19/2013
Assignee:
1400, 700 - 4TH AVENUE SW
CALGARY, CANADA T2P 2X6
Correspondent:
ROSEANN B. CALDWELL, BENNETT JONES LLP
4500 BANKERS HALL EAST
855-2ND STREET SW
CALGARY, T2P 4K7 CANADA
Assignment: 4
Reel/Frame:
034857/0635Recorded: 01/30/2015Pages: 14
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/02/2014
Assignee:
720 KING STREET WEST
TORONTO, CANADA M5B2T3
Correspondent:
CONSTANCE GALL RHEBERGEN
P.O. BOX 61389
HOUSTON, TX 77208-1389

Search Results as of: 05/23/2024 01:07 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT