Upper closure for an end door of a rail car
Patent 4265183 Issued on May 5, 1981. Estimated Expiration Date: 
October 22, 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.
October 22, 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 ReferencesUpwardly-acting door structure Sliding panel for an end door of a rail car Patent #: 4077330 InventorsAssigneeApplicationNo. 06/087405 filed on 10/22/1979US Classes:105/410, Ends49/41ARCUATE CLOSURE ROTATES ACROSS ARCUATE OPENINGExaminersPrimary: Bertsch, Richard A.Attorney, Agent or FirmInternational ClassesB61D 19/00 (20060101)B61D 17/04 (20060101) B61D 17/06 (20060101) AbstractAn end closure for a rail car which comprises a pair of doors mounted for lateral movement from a closed position across the major lower portion of the opening in one end of the rail car to an open position. A panel is mounted above each door for lateral movement from a closed position across an upper portion of the opening in the end of the rail car to an open position. Each panel is connected to the door beneath it to cause the panel to be moved to open and closed positions by the corresponding movement of the door. | |
