Tear-open packing means, particularly for liquids such as oil or the like
Patent 4154346 Issued on May 15, 1979. Estimated Expiration Date: 
October 18, 1997. 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 18, 1997. 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 2850222 2982461 3003673 3113712 3270942 3367553 3550833 3741463 InventorAssigneeApplicationNo. 05/843313 filed on 10/18/1977US Classes:229/212, Including a releasable or frangible bond (e.g., peel seal) for securing the reusable closure in position prior to tearing229/117.27, With inner flexible or flaccid bag liner229/215Pour spoutExaminersPrimary: Garbe, Stephen P.International ClassesB65D 5/74 (20060101)B65D 77/02 (20060101) B65D 77/00 (20060101) AbstractThe packing means of this invention includes a liquid impervious inner bag that is sealed at its upper end and which is closed at its bottom end. The bag is positioned within a tubular folding box which is closed at the bottom and which has, at its upper end, closure flaps hinged to three of the sidewalls. One of the closure flaps is adhesively secured to the sealed end of the inner bag so that when the adhesively secured closure flap, or a portion thereof, is torn away the inner bag is automatically opened and a pouring spout is formed. | |
