Panel punch
Patent 4899447 Issued on February 13, 1990. Estimated Expiration Date: 
January 22, 2008. 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.
January 22, 2008. 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 1372630 2250434 Panel punch Panel punch Patent #: 4724616 InventorAssigneeApplicationNo. 147221 filed on 01/22/1988US Classes:30/360, With portion positioned in work aperture30/361Work-mountedExaminersPrimary: Phan, Hien H.Attorney, Agent or FirmForeign Patent References
International ClassB26F 001/00AbstractThe panel punch includes a main punch configured to punch a trapezoidal opening in an electrical panel to receive an electrical chassis connector and a secondary punch integral with the main punch and extending from opposite ends thereof configured to punch a U-shaped slot in the panel extending from the ends of the trapezoidal opening to receive mounting screws for physically attaching the electrical connector to the panel. | |
