Wax composition for investment casting and casting method
Patent 4144075 Issued on March 13, 1979. Estimated Expiration Date: 
March 31, 1997. 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.
March 31, 1997. 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 3125453 3854962 InventorAssigneeApplicationNo. 05/783207 filed on 03/31/1977US Classes:106/38.8, Wax, bituminous material or tarry residue containing106/230, With wax106/272With filler, dye or pigmentExaminersPrimary: Hayes, Monroe H.Attorney, Agent or FirmInternational ClassesB22C 7/02 (20060101)B22C 7/00 (20060101) AbstractInvestment casting wax compositions having improved properties and characteristics and improved usefulness in investment casting processes comprises base wax compositions having incorporated therein hexamethylenetetramine, HMTA, as a filler in an amount of from about 5 to 60% by weight based on the weight of the final composition. | |
