Granted Patent
Utility
US 4,427,727 · App. 06/402,072
Sheet for holding transparencies
Inventor:
Jiro Ozeki
Patented Case
View Patent ↗
Granted: Jan 24, 1984
Filed: Jul 26, 1982
Inventor
Jiro Ozeki
Assignee (at issue)
Slidex 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.