ELK CORPORATION Trademarks
NCO
Filed: May 26, 1978
ASPHALT ROOFING SHINGLES
Owned by: ELK CORPORATION
Serial Number: 73171993
ELK
Filed: May 26, 1978
Asphalt Roofing Shingles
Owned by: ELK CORPORATION
Serial Number: 73171995
DIAMOND-LOK
Filed: June 15, 1978
ASPHALT ROOFING SHINGLES
Owned by: Elk Corporation and ELK CORPORATION
Serial Number: 73174474
