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.

Date of Patent:
Apr. 06, 2004

Filed:

Jan. 21, 2003
Applicant:
Inventors:

Mark B. Littlejohn, Appleton, WI (US);

Gerald J. Van Handel, Neenah, WI (US);

Thomas W. Zelinski, Menasha, WI (US);

Jerome G. Dees, Appleton, WI (US);

Assignee:

Fort James Corporation, Atlanta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 5/22 ;
U.S. Cl.
CPC ...
B65D 5/22 ;
Abstract

The present invention is directed to rigid disposable food containers provided with a relatively steep sidewall with a generally linear profile and an outwardly flared arcuate flange portion. The containers are further characterized by a flange outer vertical drop wherein the ratio of the length of the vertical drop to the characteristic diameter of the container is greater than about 0.01. By virtue of unique geometry, the containers of the invention exhibit improved rigidity and/or rim stiffness yet have favorable runnability in pressware manufacturing systems characteristic of plates of lower strength.


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