IP Library › Granted Patent US 736,836
Granted Patent S1
US 736,836 · App. 29/452,070 · Granted Aug 18, 2015

Casing centralizer having spiral blades

Inventors: Mitchel D. Hansen (Aledo, TX); Andrew M. Eldridge (Fort Worth, TX)
Assignee: Summit Enery Services, Inc.
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Quick Facts
Patent No.
US 736,836
App. No.
29/452,070
Granted
Aug 18, 2015
Kind
S1
Claims (1)

The ornamental design of casing centralizer having spiral blades, substantially as shown and described.

Assignments (3)
SECURITY INTEREST Recorded Apr 21, 2017
From: SUMMIT CASING SERVICES, LLC
To: MIDCAP BUSINESS CREDIT LLC
Reel/Frame 042091/0725 →
CHANGE OF NAME Recorded Apr 3, 2017
From: SUMMIT ENERGY SERVICES, INC.
To: SUMMIT CASING SERVICES, LLC
Reel/Frame 042143/0201 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 24, 2013
From: HANSEN, MITCHEL D.; ELDRIDGE, ANDREW M.
To: SUMMIT ENERGY SERVICES, INC.
Reel/Frame 030278/0857 →
Continuity (1)
Continuation 29417514 · Apr 4, 2012