Granted Patent
Utility
US 5,416,486 · App. 08/148,433
Identification/security tag system employing electronic doppler shifting and/or rectenna structure
Inventors:
Peter Koert, George M. Metze, Mark H. Machina
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Nov 8, 1993
Inventors
Peter Koert
George M. Metze
Mark H. Machina
Assignee (at issue)
Apti 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.