Granted Patent
Utility
US 5,031,939 · App. 07/448,508
Product label
Inventors:
Stephen D. Webendorfer, John M. Harden
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Dec 11, 1989
Inventors
Stephen D. Webendorfer
John M. Harden
Assignee (at issue)
Standard Register, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.