Flexible bulk container
Patent 4207937 Issued on June 17, 1980. Estimated Expiration Date: 
August 3, 1998. 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.
August 3, 1998. 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 1572605 1682198 1983452 2808091 Bulk containers Collapsible receptacle for flowable materials Patent #: 4143796 InventorsAssigneeApplicationNo. 05/930783 filed on 08/03/1978US Classes:383/17, Including reinforcement or stress distribution means attached to or adjacent element383/117, Woven or mesh-type material383/119, Reinforced383/20, Additional layer of material at element attachment location383/24Closed loopExaminersPrimary: Norton, Donald F.Attorney, Agent or FirmInternational ClassesB65D 88/00 (20060101)B65D 88/16 (20060101) Foreign Application Priority Data1977-08-06 GBAbstractA flexible bulk container for carrying up to one ton of material in e.g. granular form. The container includes a bag of woven fabric such as polypropylene. Where necessary for reasons of reinforcement, i.e. where lifting loops are attached, or adjacent seams, the warp of the fabric is of increased strength per unit width. This is achieved by the use of higher tenacity warp threads, and/or a higher density of warp threads. | |
