Granted Patent
Utility
US 4,930,643 · App. 07/115,718
Display unit with modular capability
Inventor:
Paul L. Flum
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Nov 2, 1987
Inventor
Paul L. Flum
Assignee (at issue)
Paul Flum Ideas, 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.