Mark Identification

HYDROLOCK

Serial Number

74227302

Filing Date

Dec 3, 1991

Registration Date

Jan 9, 1996

Trademark by

AMERICAN COLLOID COMPANY

Classification Information

flexible, water-impermeable barrier sheet comprising bentonite clay retained by fibrous material for use as a liner for ponds and reservoirs, as a liner and cover for waste dumps, and for waterproofing building foundations; bentonite-based grout; and bentonite-based waterproofing compound

Nonmetallic Building Materials