IP Library › Granted Patent US 983,231
Granted Patent S1
US 983,231 · App. 29/692,649 · Granted Apr 11, 2023

Casing centralizer having spiral blades

Inventors: Mitchel D. Hansen (Aledo, TX); Andrew M. Eldridge (Fort Worth, TX)
Assignee: SUMMIT CASING SERVICES, LLC
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Quick Facts
Patent No.
US 983,231
App. No.
29/692,649
Granted
Apr 11, 2023
Kind
S1
Claims (1)

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

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2019
From: HANSEN, MITCHEL D.; ELDRIDGE, ANDREW M.
To: SUMMIT ENERGY SERVICES, INC.
Reel/Frame 050435/0495 →
CHANGE OF NAME Recorded Sep 19, 2019
From: SUMMIT ENERGY SERVICES, INC.
To: SUMMIT CASING SERVICES, LLC
Reel/Frame 051790/0778 →
Continuity (3)
Continuation 29536008 · Aug 12, 2015
Continuation 29452070 · Apr 11, 2013
Continuation 29417514 · Apr 4, 2012