Abrading material
Patent 4240806 Issued on December 23, 1980. Estimated Expiration Date: 
August 16, 1998. 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.
August 16, 1998. 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 3045321 3905080 Cutting teeth for etched abrasives Patent #: 4099935 InventorAssigneeApplicationNo. 05/934206 filed on 08/16/1978US Classes:51/295, IMPREGNATING OR COATING AN ABRASIVE TOOL216/41, MASKING OF A SUBSTRATE USING MATERIAL RESISTANT TO AN ETCHANT (I.E., ETCH RESIST)216/92, Projecting etchant against a moving substrate or controlling the angle or pattern projection of the etchant or controlling the angle or pattern of movement of the substrate29/76.1, FILING407/29.1, FILE OR RASP428/932, Abrasive or cutting feature51/309Metal or metal oxideExaminersPrimary: Powell, William A.Attorney, Agent or FirmInternational ClassesB24D 17/00 (20060101)B24D 11/00 (20060101) C23F 1/04 (20060101) C23F 1/02 (20060101) B24D 18/00 (20060101) AbstractA metal abrading material formed from acid etching with a resist pattern comprising a plurality of polygonal shapes with accentuated corners dispersed in a pattern chosen to intermix cutting points with planing edges. | |
