Granted Patent
Utility
US 4,674,632 · App. 06/756,789
Slip case package for book and computer software disk
Inventor:
Herbert Friedman
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Jul 18, 1985
Inventor
Herbert Friedman
Assignee (at issue)
Ivy Hill Corporation
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.