Container closure members
Patent 4212409 Issued on July 15, 1980. Estimated Expiration Date: 
April 9, 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.
April 9, 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 3276616 Container closure Molded plastic covers for containers Closure for a container Closure structure for containers Patent #: 4144994 InventorAssigneeApplicationNo. 06/028476 filed on 04/09/1979US Classes:220/276, Line of weakness extends circumferentially of receptacle mouth215/256, Line of weakness extends circumferentially of receptacle mouth opening220/270With gripping means (e.g., pull tab)ExaminersPrimary: Hall, George T.Attorney, Agent or FirmInternational ClassesB29C 59/00 (20060101)B29C 37/00 (20060101) Foreign Application Priority Data1978-04-10 SEAbstractA closure member is provided for closing a container opening wherein the closure member includes a central closure panel, a circumferential rim, and a circumferential edge flange having a circumferential line of weakness about which the edge flange can be folded to abut the outer surface of the container. | |
