TALBOTT, NELSON S.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5356446 Low density insulating and fire-resistant perlite concreteExpiredJul 07, 93Oct 18, 94[E04B, E04F]
5302200 Hydrating and plasticizing admixture for dense concreteExpiredNov 27, 91Apr 12, 94[C04B]
5294255 Pumpable backfill groutExpiredSep 23, 92Mar 15, 94[C04B]
5118527 Dry grout and method of distribution aluminum thereinExpiredNov 30, 90Jun 02, 92[B05D, B32B]
5114617 High strength structural perlite concreteExpiredAug 24, 90May 19, 92[C04B]

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