KB ALLOYS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6136108 Strontium master alloy composition having a reduced solidus temperature and method of manufacturing the sameExpiredOct 06, 99Oct 24, 00[C22F, C21D]
6123899 Master alloy hardenersExpiredMar 08, 95Sep 26, 00[C22C]
4873054 Third element additions to aluminum-titanium master alloysExpiredMar 07, 88Oct 10, 89[C22C]
4820265 Tubing setExpiredDec 16, 86Apr 11, 89[A61M]
4812290 Third element additions to aluminum-titanium master alloysExpiredSep 08, 86Mar 14, 89[C22C]
4612073 Aluminum grain refiner containing duplex crystalsExpiredAug 02, 84Sep 16, 86[C22C]
4298408 Aluminum-titanium-boron master alloyExpiredJan 07, 80Nov 03, 81[C22C]

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