Casing centralizer having spiral blades
Latest SUMMIT ENERGY SERVICES, INC. Patents:
Description
The broken lines showing a cylinder are included for the purposes of illustrating only and form no part of the claimed design.
Claims
The ornamental design of casing centralizer having spiral blades, substantially as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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- Amended Order, Top-Co Inc., et al v. Summit Energy Services, Inc. dba Summit Casing Equipment, US District Court, Southern District of Texas, Houston Division, Alfred H. Bennett, US District Judge, Civil Action No. 4:13-CV-445, 8 pages Mar. 8, 2016.
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Patent History
Patent number: D849800
Type: Grant
Filed: Aug 12, 2015
Date of Patent: May 28, 2019
Assignee: SUMMIT ENERGY SERVICES, INC. (Fort Worth, TX)
Inventors: Mitchel D. Hansen (Aledo, TX), Andrew M. Eldridge (Fort Worth, TX)
Primary Examiner: Mark A Goodwin
Application Number: 29/536,008
Type: Grant
Filed: Aug 12, 2015
Date of Patent: May 28, 2019
Assignee: SUMMIT ENERGY SERVICES, INC. (Fort Worth, TX)
Inventors: Mitchel D. Hansen (Aledo, TX), Andrew M. Eldridge (Fort Worth, TX)
Primary Examiner: Mark A Goodwin
Application Number: 29/536,008
Classifications
Current U.S. Class:
Drilling, Mining, Or Soil Treatment (includes Element) (D15/21)