WHITE RESEARCH & DEVELOPMENT, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7247201 Pre-blend cement compositions containing non-chloride acceleratorsExpiredOct 07, 04Jul 24, 07[C04B]
6939401 Settable composition containing potassium chlorideExpiredMar 26, 03Sep 06, 05[0000]
6780236 Settable composition containing sodium chlorideExpiredSep 12, 02Aug 24, 04[C04B]
6746531 Pre-blend settable composition containing calcium chlorideExpiredDec 23, 02Jun 08, 04[C04B]
6682595 Settable composition containing potassium sulfateExpiredSep 12, 02Jan 27, 04[C04B]
6656264 Settable composition containing potassium chlorideExpiredOct 22, 01Dec 02, 03[C04B]
6645290 Settable composition containing cement kiln dustExpiredOct 09, 01Nov 11, 03[C04B]

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