The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1992
Filed:
Mar. 01, 1991
Applicant:
Inventor:
William M Bohon, Frisco, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
417390 ; 417401 ; 417403 ;
Abstract
Apparatus and method for pumping fluid from a wellbore using a reciprocating downhole pump, the downhole pump being reciprocated by a pumping unit which employs a hydraulic power cylinder means, the power cylinder being actuated with a variable displacement hydraulic pump.
Bohon, William. (1992). Well pumping (U.S. Patent No. 5145332). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5145332
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile