US Patent No: 4,230,261

Number of patents in Portfolio can not be more than 2000

Lunch box carton and a blank for forming same

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

A lunch box carton made from a single cardboard blank with an attractive reclosable gabled top and an auto-erecting lock bottom. The lunch box carton has a tapered side wall construction, forming an inverted truncated pyramidal configuration to enable stacked nesting of a plurality of the cartons. The lunch box carton is of a knock-down variety which can be shipped in a flattened configuration and is further provided with an auto-erecting lock bottom to facilitate erection of the carton. The top portion of the carton is attractively gabled in configuration, providing additional interior volume, and includes integral carrying handles. Further, the carton is provided with movable wedge shaped locking portions pivotally connected on the top of the carton which can be interengaged with apertures provided in the side wall of the carton, to securely lock the carton in the closed condition. In addition, to prevent lateral shifting of the top of the carton, the carrying handles are secured by folding tabs.

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
WALDORF CORPORATION, A CORP. OFSTAMFORD, CT276

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Austin, John J Elkhart, IN 22 305

Cited Art

  • No Cited Art to Display

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
GRAPHIC PACKAGING INTERNATIONAL, INC. (3)
5,098,014 Collapsible, self-locking, paperboard carton 10 1991
D424433 Carton 3 1998
8,061,585 Reclosable cartons 0 2008
 
PERSECO DIVISION OF THE HAVI GROUP LP (3)
5,221,040 Buckle-proof clamshell carton 16 1992
5,205,476 Clamshell carton having an improved latching mechanism 30 1992
5,332,147 Buckle-proof clamshell carton 13 1993
 
INTERNATIONAL PAPER COMPANY (2)
4,535,928 Dual purpose carton 15 1983
5,346,121 Web tuck paperboard carton 2 1993
 
WALDORF CORPORATION, A CORP. OF (2)
4,307,834 Take out carton and blank for forming same 16 1980
4,341,341 Take out carton and blank for forming same 17 1981
 
AMERICHIP, INC. (1)
7,475,804 Pop up tray container 0 2005
 
BROYLES, JAMES H. (1)
D396805 Disposable lunch box 6 1997
 
Hardee's Food Systems, Inc. (1)
4,548,352 Pop-out carton 13 1984
 
Levy (IP) Limited Partnership (1)
7,743,971 Food and beverage carrier and method 0 2006
 
TARGET BRANDS, INC. (1)
D569705 Handle 1 2007
 
Other [Check patent profile for assignment information] (5)
5,522,628 Sanitary paperboard scoop-action carton 5 1994
5,799,818 Collapsible liquid container 12 1996
6,336,584 Multiple use carton box 12 2000
6,523,740 Floral container 2 2001
6,637,645 Convertible bread packaging product for loaf bread 2 2002