IFIREF

The IFI Uniterm and U.S. Class Reference file
Database Producer
IFI CLAIMS® Patent Services
Description
The IFI Uniterm and U.S. Class Reference file is a special reference file for the IFIALL file. IFIREF contains U.S. Patent Office (USPTO) classification codes and titles, plus authority data for general, fragment and compound Uniterms.
232.03 KB

Database Summary Sheet: Concise description with all fields, all formats, many examples.

669.35 KB

In addition to the STN General Terms & Conditions, please find the file-specific Usage Terms here.

Subjects