Packing container for liquid contents
Patent 4798295 Issued on January 17, 1989. Estimated Expiration Date: 
October 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 30, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2312895 2555526 3650458 3687352 3836039 Packaging means Opening arrangement for packing containers Packing container provided with opening arrangement Opening of containers Tape closure for a can end InventorApplicationNo. 07/115056 filed on 10/30/1987US Classes:229/229, Reusable hinged closure provides an access opening which is coextensive with only a portion of the top wall229/160.2, Including means to facilitate the application of an opening force to the closure (e.g., pulltab, thumb notch, etc.)229/238Box includes a separate tearing element which is gripped and pulled to open the boxExaminersPrimary: Marcus, StephenAssistant: Elkins, Gary E. Attorney, Agent or FirmInternational ClassesB65D 5/02 (20060101)B65D 5/06 (20060101) B65D 5/70 (20060101) Foreign Application Priority Data1986-11-13 GBAbstractThe invention relates to a packing container which is intended for liquid contents and is of the type which comprises a container body with at least one straight side wall (1) and an upper end wall (2) which is joined to the side wall (1) along a folding line (5) so as to form a relatively sharp transition between the package side (1) and the end wall (2). The upper end wall (2) is provided with a hole (4) penetrating the package wall which preferably is of triangular shape and which with one of its points reaches up to the lateral edge (5) between the upper end wall (2) of the package and its side wall (1). The hole (4) is covered from the inside by a thin plastic film, and from the hole (4) emanate two diverging perforation lines (6) which extend up to a common crease line (7) arranged in the upper end wall (2). Over the hole (4) and parts of the perforation lines (6) a further cover strip (8) with a thermoplastic coating is provided. The cover strip (8) is sealed to the inner plastic film exposed in the hole (4) and, at least in the region between the crease lines (6), to the upper end wall (2). | |
