Novel getter and process
Patent 3977813 Issued on August 31, 1976. Estimated Expiration Date: 
August 31, 1993. 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 31, 1993. 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 1628987 2043724 2060861 2209870 2661336 3071310 3584253 3669567 InventorsAssigneeApplicationNo. 05/434693 filed on 01/18/1974US Classes:417/49, Ionic with gettering252/181.4, Containing magnesium, alkali-metal and alkaline-earth metal, or compound thereof252/181.7Magnesium, alkali-metal, or alkaline-earth metalExaminersPrimary: Freeh, William L.Attorney, Agent or FirmInternational ClassesG21H 1/00 (20060101)G21H 1/10 (20060101) H01L 35/00 (20060101) AbstractProcess for activating a getter composed of a porous barium pellet comprising maintaining a barium pellet in an inert atmosphere, placing the pellet in an enclosed chamber, evacuating the chamber and heating the evacuated chamber containing the pellet to about 800°F for about two hours to activate same by removing gases from the surfaces of the pellet and an activated barium getter comprising a perforated metal or alloy can preferably composed of tantalum containing a barium pellet which has been heated in a vacuum to about 800°F for about two hours. | |
