AGGRE-BLOK
Filed: May 18, 1972
MASONRY UNITS, CHIEFLY MASONRY BLOCKS WITH A RESIN-BASE COMPOUND BONDED TO THE EXPOSED FACE AND A LAYER OF A PARTICULATE…
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 72424817
ACOUSTA-BLOK
Filed: April 10, 1979
SOUND ABSORBING MASONRY BLOCKS
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 73211003
THERMOBLOC
Filed: December 2, 1983
Blocks for Building and Other Structure Having Thermal Insulating Properties
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 73455337
TRENWYTH BRICKS
Filed: March 10, 1989
BRICKS
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 73785664
STONEWALL
Filed: January 10, 1990
stone faced masonry blocks
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 74017761
ARISTOCRAT
Filed: January 10, 1990
textured concrete masonry blocks
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 74018330
DECOR-GLAZE
Filed: November 5, 1991
glazed masonry blocks
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 74219131
HAMPTON-STONE
Filed: April 16, 1996
masonry blocks to construct retaining walls
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 75088810
ASTRA-GLAZE TILE SERIES
GLAZED MASONRY BLOCKS
Owned by: TRENWYTH INDUSTRIES, INC.
Serial Number: 75704924
