Mark Identification

ENGINEERED BIODEGRADATION SYSTEM

Serial Number

73688221

Filing Date

Oct 5, 1987

Trademark by

KEYSTONE ENVIRONMENTAL RESOURCES INC.

Classification Information

DESIGN AND CONSTRUCTION OF FACILITIES FOR SUCH TREATMENT

Building Construction and Repair

SERVICES RELATED TO THE TREATMENT OF CONTAMINATED SOILS AND RESIDUES (SLUDGES)

Treatment of Materials