Granted Patent
Utility
US 5,037,381 · App. 07/558,944
Electrically assisted transdermal transport device and method for renewing the device
Inventors:
C. Randolph Bock, Burton H. Sage, Jr.
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Jul 27, 1990
Inventors
C. Randolph Bock
Burton H. Sage, Jr.
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.