Granted Patent
Utility
US 4,816,839 · App. 07/135,048
Transponder antenna
Inventor:
Jeremy A. Landt
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Dec 18, 1987
Inventor
Jeremy A. Landt
Assignee (at issue)
AMTECH, LLC
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.