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:
Feb. 25, 1986
Filed:
Mar. 31, 1983
Applicant:
Inventors:
Joseph Mantarro, Pensacola, FL (US);
Keh-Chang Liu, Pensacola, FL (US);
Barry J Dempsey, White Heath, IL (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01C / ; E01C / ;
U.S. Cl.
CPC ...
404 35 ; 404 66 ; 428 86 ; 428 95 ; 405 45 ; 521695 ; 210486 ;
Abstract
Elongated, bendable drainage mat having a rectangular transverse cross section and comprising a polymeric core having a plurality of substantially rigid fingers extending from one side of a layer and an enveloping water permeable fabric having a permittivity from 0.2 seconds.sup.-1 to 2.0 seconds.sup.-1 and a dynamic permeability after 10.sup.6 loadings of at least 10.sup.-4 centimeters per second. Apparatus and systems using such drainage mat.