Granted Patent
Utility
US 5,218,374 · App. 07/419,144
Power beaming system with printer circuit radiating elements having resonating cavities
Inventors:
Peter Koert, James Cha
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Oct 10, 1989
Inventors
Peter Koert
James Cha
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.