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:
Jan. 05, 1993
Filed:
Nov. 08, 1990
Jens O Sorensen, Rancho Santa Fe, CA (US);
Primtec, Rancho Santa Fe, CA (US);
Abstract
In a plastic container, including a base and a thin flexible perimetric side wall extending from the base and terminating in a perimetric rim, the side wall includes a perimetric ledge extending generally in a lateral direction; an upper perimetric wall section extending between an outer edge of the ledge and the rim; a lower perimetric wall section extending toward the base from an inner edge of the ledge; and a perimetric series of longitudinal ribs closely spaced about all of the ledge and extending between the ledge and one of said wall sections for reinforcing the container against extreme flexure when the container is lifted by being gripped at the upper wall section by a thumb and finger while the container contains a substantial weight of material. The ribs are recessed from a brink of the ledge and have an exposed edge that extends between the ledge and the one wall section at an angle that is less than an angle between the ledge and the one wall section. The ribs are spaced so that there are at least three ribs within each inch of the ledge.