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. 10, 2002
Filed:
Mar. 31, 2000
Howard V. Block, Johnston, IA (US);
Anthony W. Bradley, Humboldt, IA (US);
Welch Products, Inc., Carlisle, IA (US);
Abstract
An anti-vegetation system for retarding growth around a structure extending from the ground includes a plurality of mats. A first mat includes at least one predefined scoring pattern to accommodate the shape of the structure extending from the ground. A plurality of scoring patterns can be included to accommodate a variety of shapes and sizes. When a scoring pattern it utilized, and the corresponding portion optionally removed, the mat can be positioned on the ground and partially around the structure extending from the surface. A second mat is positioned adjacent to the first mat and effectively surrounds the structure extending from the ground. Additional mats can be placed adjacent to the first and the second mat to increase the size of the protected area. Adjacent edges can utilize corresponding outwardly extending lips to improve the sealing efficiency of the edge-to-edge regions.