Granted Patent
Utility
US 5,072,309 · App. 07/473,783
Information retrievel arrangement including facsimile apparatus
Inventor:
Sanford Brown
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Feb 2, 1990
Inventor
Sanford Brown
Assignee (at issue)
AT&T Bell Laboratories
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.