IP Library › Granted Patent US 849,800
Granted Patent S1
US 849,800 · App. 29/536,008 · Granted May 28, 2019

Casing centralizer having spiral blades

Inventors: Mitchel D. Hansen (Aledo, TX); Andrew M. Eldridge (Fort Worth, TX)
Assignee: SUMMIT ENERGY SERVICES, INC.
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Quick Facts
Patent No.
US 849,800
App. No.
29/536,008
Granted
May 28, 2019
Kind
S1
Claims (1)

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

Assignments (2)
CHANGE OF NAME Recorded Sep 27, 2019
From: SUMMIT ENERGY SERVICES, INC.
To: SUMMIT CASING SERVICES, LLC
Reel/Frame 050580/0157 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2015
From: HANSEN, MITCHEL D.; ELDRIDGE, ANDREW M.
To: SUMMIT ENERGY SERVICES, INC.
Reel/Frame 037067/0923 →
Continuity (2)
Continuation 29452070 · Apr 11, 2013
Continuation 29417514 · Apr 4, 2012