Granted Patent
Utility
US 5,158,080 · App. 07/824,308
Muscle tone
Inventor:
Michael Kallok
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Jan 23, 1992
Inventor
Michael Kallok
Assignee (at issue)
Medtronic, 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.