Patent and Trademark Resource Centers in Illinois Illinois State Library

Patent and Trademark Resource Centers (PTRCs) are libraries designated by the U.S. Patent and Trademark Office (USPTO) to receive and house copies of U.S. patents and patent and trademark materials, to make them freely available to the public, and to actively disseminate patent and trademark information. The Illinois State Library regretfully decided to relinquish its role as a PTRC in 2009.

The closest PTRCs to the Springfield, Illinois area are located in Chicago, Macomb and St. Louis. For further information contact:

Chicago Public Library
Business/Science/Technology Division
Science and Technology Information Center
400 S. State St.
Chicago, IL 60605
Hours: Mon.−Thurs., 9 a.m.−7 p.m., Fri.−Sat., 9 a.m.−5 p.m., Sun., 1 p.m.−5 p.m.
312−747−4975 (fax)

Leslie S. Malpass Library, Western Illinois University
U.S. Patent and Trademark Resource Center
Macomb, IL 61455
Hours: Mon.−Thurs., 8 a.m.−9 p.m., Fri.−8 a.m.−5 p.m., Sat.−Sun., closed.

St. Louis Public Library
U.S. Patent and Trademark Resource Center
1301 Olive Street
Saint Louis, Missouri 63103
Hours: Mon.−Thurs., 9 a.m.−10 p.m., Fri.−Sat., 10 a.m.−6 p.m., Sun., closed.
314−241−3840 (fax)