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:
Nov. 02, 1982
Filed:
Sep. 08, 1981
Applicant:
Inventors:
Cornelis Appel, Amsterdam, NL;
Bartel Kuilman, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166153 ; 166192 ;
Abstract
A pump plug for use in through-the-flowline well operations, including a sleeve provided with annular sealing fins, which fins are flexible in both directions of the central axis of the sleeve. Support means are mounted on the sleeve for supporting the sealing fins in each of the flexed positions thereof.
Quick Actions:
Appel, Cornelis. (1982). Pump plug for use in well operations (U.S. Patent No. 4356865). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4356865
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile