International Lead Zinc Research Organization, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0228,482 Zinc-aluminum alloy coating of metal objectsAbandonedApr 07, 05Oct 12, 06[B05D]
2004/0091,777 Lead compositions for lead-acid batteriesAbandonedSep 08, 03May 13, 04[H01M, C22C]
6284122 Production of a zinc-aluminum alloy coating by immersion into molten metal bathsExpiredJul 12, 00Sep 04, 01[C25D, B05D]
6097144 Cathode ray tubes having reduced glass browning propertiesExpiredOct 28, 98Aug 01, 00[H01J]
5800948 Lead-acid battery and separator thereforExpiredDec 19, 96Sep 01, 98[H01M]
5256272 Electrochemical sensor for determining the level of a certain metal in metals and alloysExpiredMar 10, 92Oct 26, 93[G01N]
5094693 Doped zinc oxide-based pigmentExpiredFeb 20, 90Mar 10, 92[C09C]
5071620 High creep strength zinc alloysExpiredAug 31, 90Dec 10, 91[C22C]
4978601 Lead alloy battery grids by laser treatmentExpiredOct 30, 89Dec 18, 90[H01M]
4891284 Lead-aluminum materialExpiredSep 27, 88Jan 02, 90[H01M, C22C]
4738758 Process for continuous deposition of a zinc-aluminum coating on a ferrous product, by immersion in a bath of molten metalExpiredOct 15, 86Apr 19, 88[C23C]
4448748 Zinc-aluminum alloys and coatingsExpiredAug 02, 82May 15, 84[C22C]
4329152 Determination of .beta..sub.2 -microglobulin in human urine and serum by latex immunoassayExpiredOct 06, 80May 11, 82[G01N]
4316752 Oxalic acid treatment of carbon steel, galvanized steel and aluminum surfacesExpiredOct 16, 80Feb 23, 82[C23C]
4264052 Water-dispersible coatings containing boron nitride for steel casting diesExpiredJul 16, 79Apr 28, 81[B28D, B22C]
4233088 Phosphatization of steel surfaces and metal-coated surfacesExpiredMar 29, 79Nov 11, 80[C23F]
4202523 Boron nitride/elastomeric polymer composition for coating steel casting diesExpiredDec 06, 77May 13, 80[B22C]
4196063 Electrodeposition of black chromiumExpiredApr 19, 79Apr 01, 80[C25D]
4195002 Water-dispersible coatings containing boron nitride for steel casting diesExpiredJul 27, 78Mar 25, 80[C08J, C08L]

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