Granted Patent
Utility
US 4,019,510 · App. 05/548,352
Therapeutic method of using low intensity direct current generator with polarity reversal
Inventor:
Franklin H. Ellis
Patented Case
View Patent ↗
Granted: Apr 26, 1977
Filed: Feb 10, 1975
Inventor
Franklin H. Ellis
Assignee (at issue)
Sybron 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.