Self-locking fastener
Patent 4033393 Issued on July 5, 1977. Estimated Expiration Date: 
July 5, 1994. 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.
July 5, 1994. 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 1137941 1368087 2251410 2393323 3342626 3552467 3568746 InventorApplicationNo. 05/362996 filed on 05/23/1973US Classes:411/301, Elastic gripping action411/930, Flowing metal or settable material411/947Elastic-gripping actionExaminersPrimary: Frazier, Roy D.Attorney, Agent or FirmAbstractReusable self-locking fasteners, and methods of metal fasteners wherein the self-locking characteristic is derived from a patch comprising a metal or metal alloy selectively applied to the threaded surface of the metal fastener in a spraying operation. The metallic patch may comprise a single metal or metal alloy or a composite of metals or metal alloys selectively bonded to the threaded surface of the metal fastener by single or multiple molten spraying operations respectively. | |
