Granted Patent
Utility
US 4,532,932 · App. 06/567,933
Implant communication system with frequency shift means
Inventor:
John Robert Batty
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Jan 3, 1984
Inventor
John Robert Batty
Assignee (at issue)
CORDIS 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.