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:
Aug. 21, 1990

Filed:

Sep. 29, 1989
Applicant:
Inventors:

Hugo Boeckmann, Arlington Heights, IL (US);

Steven Ausnit, New York, NY (US);

Assignee:

Zip-Pak Incorporated, Northbrook, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; B43M / ; B65D / ; B31B / ;
U.S. Cl.
CPC ...
53412 ; 156 66 ; 206601 ; 383 61 ; 493213 ; 493390 ;
Abstract

A tray for foodstuffs or the like having a continuous edge rim and a flexible cover placed over the top of the tray and sealed to the rim with an elongate continuous interlockable separate rib and groove profile on strips sealed to the surface of the cover wherein upstanding pull flanges above the rib and groove profiles may be pulled apart and the cover severed between the profiles for access to the contents so that the cover may be opened and closed.


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