BIEC INTERNATIONAL, INC., A CORP. OF DE.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4462533 Method of reconditioning welded jointsExpiredJun 24, 82Jul 31, 84[B23K]
4421054 Apparatus for preventing surface blemishes on aluminum-zinc alloy coatingsExpiredOct 13, 81Dec 20, 83[B05C]
4350539 Method of improving the ductility of the coating of an aluminum-zinc alloy coated ferrous productExpiredMay 26, 81Sep 21, 82[B32B]
4350540 Method of producing an aluminum-zinc alloy coated ferrous product to improve corrosion resistanceExpiredMay 26, 81Sep 21, 82[B32B]
4310572 Method for wiping hot dip metallic coatingsExpiredApr 11, 80Jan 12, 82[C23C]
4287008 Method of improving the ductility of the coating of an aluminum-zinc alloy coated ferrous productExpiredNov 08, 79Sep 01, 81[C23C, C23F, C22C]
4287009 Method of producing an aluminum-zinc alloy coated ferrous product to improve corrosion resistanceExpiredNov 08, 79Sep 01, 81[C22F, C23F]
4287238 Protective atmosphere gas wiping apparatus and method of usingExpiredApr 11, 80Sep 01, 81[C23C, B05C]
4264684 Zinc-alloy coated ferrous product resistant to embrittlementExpiredDec 17, 79Apr 28, 81[C23C]

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