Granted Patent
Utility
US 4,333,628 · App. 06/167,032
Perforated board display bracket assembly
Inventor:
Robert Geisler
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Jul 9, 1980
Inventor
Robert Geisler
Assignee (at issue)
Keystone Consolidated Industries, 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.