Granted Patent
Utility
US 4,401,949 · App. 06/230,192
External device identification system
Inventor:
Kenneth S. Gold
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Feb 2, 1981
Inventor
Kenneth S. Gold
Assignee (at issue)
FMC 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.