Who owns the DI-LOK trademark?

The DI-LOK trademark is owned by CARNEGIE-ILLINOIS STEEL CORPORATION.

What class is the DI-LOK trademark registered in?

The DI-LOK trademark is registered in Class 014 (Precious metals, jewelry, clocks & watches).

The USPTO serial number for DI-LOK is 71607420.

DI-LOK is registered under USPTO registration number 552033.

Updated Oct 30, 2026·13 searches this week

DIL

ABANDONED

Precious metals and their alloys; jewellery, precious and semi-precious stones; horological and chronometric instruments.

Class 014Precious metals, jewelry, clocks & watches

US codes: 014

First use anywhere: Oct 11, 1950

First use in commerce: Oct 11, 1950

Precious metals and their alloys; jewellery, precious and semi-precious stones; horological and chronometric instruments.

This description is as filed with the USPTO and defines the scope of trademark protection.