Hanger nail for suspended ceiling
Patent 5127785 Issued on July 7, 1992. Estimated Expiration Date: 
February 27, 2011. 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.
February 27, 2011. 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 345153 838203 1326910 1876021 2490355 2618297 2712864 3491933 InventorApplicationNo. 661230 filed on 02/27/1991US Classes:411/453, Spiral rib411/440, Having means to facilitate explosive driving411/485, Hook head411/922NAIL, SPIKE OR TACK HAVING LOCKING DEVICEExaminersPrimary: Wilson, Neill R.Attorney, Agent or FirmInternational ClassesF16B 015/08F16B 015/02 AbstractA nail is adapted to be inserted in a solid material with a wire hooked to the nail in such a way so that the wire is inserted with the nail into the solid material. The nail is crosswise perforated with grooves on each side of the nail to provide a tight pathway for the wire.Field of SearchHaving means to facilitate explosive drivingDiscrete guide or centering means Having means engageable on underside of member being secured by fastener Longitudinal rib Spiral rib Defined by twisted shank Barb or spur-type projection Hook head NAIL, SPIKE OR TACK HAVING SPECIFIC HEAD STRUCTURE NAIL, SPIKE OR TACK HAVING LOCKING DEVICE Comprising deformable portion Pivot means connecting separate fluke or hook Fluke or hook pivoted intermediate their ends DEADMAN-TYPE ANCHOR Stake In aperture of support By wall anchor Needles Threading structure Setting and threading attachments | |
