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:
Apr. 18, 2000
Filed:
Dec. 30, 1997
Applicant:
Inventors:
Charles M Daul, Libertyville, IL (US);
Paul A Sivak, Compton, IL (US);
David Lyzinski, Wheaton, IL (US);
Albert J Kovach, Sugar Grove, IL (US);
Assignee:
BP Amoco Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ; B65D / ;
U.S. Cl.
CPC ...
5274112 ; 52 19 ; 52 20 ; 52 21 ; 521696 ; 521697 ; 405 52 ; 405 55 ; 141 86 ; 137312 ;
Abstract
A method of upgrading an existing unprotected submersible pump area with secondary containment to prevent accidental release of harmful materials from contaminating the soil below grade.