Granted Patent
Utility
US 5,351,928 · App. 08/013,630
Easel and pad pack and method of use
Inventors:
John F. Cooper, Kenneth A. Keeley
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Feb 4, 1993
Inventors
John F. Cooper
Kenneth A. Keeley
Assignee (at issue)
Wallace Computer Services, 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.