Nonmetallic building materials Trademarks Filed in March 16, 1990
ENSEMBLE

ENSEMBLE

Filed: March 16, 1990
instrumental acoustical shells
Owned by: RPG DIFFUSOR SYSTEMS, INC.
Serial Number: 74039097

CHORISTER

CHORISTER

Filed: March 16, 1990
choral acoustical shells
Owned by: RPG DIFFUSOR SYSTEMS, INC.
Serial Number: 74039099

GABLE MASTER

GABLE MASTER

Filed: March 16, 1990
fixed plastic exterior wall vents
Owned by: Mid-America Building Products Corporation
Serial Number: 74039186

IMPERVA

IMPERVA

Filed: March 16, 1990
clay products in the nature of ceramic tiles
Owned by: SUMMITVILLE TILES, INC.
Serial Number: 74039234

CERTI-LAST

CERTI-LAST

Filed: March 16, 1990
wood shingles and shakes
Owned by: Cedar Shake & Shingle Bureau
Serial Number: 74039251