Granted Patent
Utility
US 4,475,481 · App. 06/437,841
Identification system
Inventor:
Gary T. Carroll
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Oct 29, 1982
Inventor
Gary T. Carroll
Assignee (at issue)
BI Incorporated
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.