Cigarette pack laminate having raised sealing ridges
Patent 4250994 Issued on February 17, 1981. Estimated Expiration Date: 
March 19, 1999. 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.
March 19, 1999. 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 2259822 3017067 3079059 3533548 Cigarette packet of laminated sheeting and method for the production thereof Pack of a foldable material, more particularly a cigarette pack Patent #: 3986607 InventorAssigneeApplicationNo. 06/022003 filed on 03/19/1979US Classes:206/273, Folded blank229/134, Including embossing or scoring to enhance the bond229/190, A sidewall includes a folded lateral extension of an adjacent sidewall (e.g., "corner flap")229/5.81Box material includes a coating or a nonpaperboard lamination or is permeated with a substanceExaminersPrimary: Ross, Herbert F.Attorney, Agent or FirmInternational ClassesB65D 5/42 (20060101)B65D 85/08 (20060101) B65D 85/10 (20060101) Foreign Application Priority Data1978-03-20 DEAbstractA cigarette pack blank made from a laminate and having an outer layer of heat-weldable plastic is provided with raised, elongate ridges or beads 22, 24-26 on various fold flaps to facilitate hermetic sealing by the application of heat and pressure in spite of any minor irregularities or waviness in the planes of the flaps.Field of SearchSheet-formed receptacle | |
