Serial Number
71680150
Owner
AMCOL INTERNATIONAL CORPORATIONFirst Use Date
Jun 20, 1941
Filing Date
Jan 19, 1955
BLACK HILLS Trademark
Serial Number: 71680150 • Registration: 0616703
Trademark Classes
Owner Contact Info
2870 Forbs Avenue
Hoffman Estates, IL 60192
Entity Type: 03
Trademark Details
Filing Date
January 19, 1955
Registration Date
November 29, 1955
First Use Anywhere
June 20, 1941
First Use in Commerce
June 20, 1941
Cancellation Date
March 16, 2020