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:
Jun. 19, 2012
Filed:
Sep. 25, 2009
Applicant:
David A. Green, Highlands Ranch, CO (US);
Inventor:
David A. Green, Highlands Ranch, CO (US);
Assignee:
Well Master Corp., Golden, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 31/18 (2006.01); E21B 23/00 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A staging tool arrangement for gas well production assistance, comprising an elongated staging tool having an elongated upper portion and an elongated lower portion. The upper portion has a sliding relationship with the lower portion thereof. A displaceable annular seal is arranged about the lower portion. A displaceable enclosure is arranged on the elongated lower portion so as to slidably expose and to slidably enclose the annular seal.