Granted Patent
Utility
US 4,961,739 · App. 07/165,143
Waveform generator for electrosurgical apparatus
Inventor:
Richard K. Thompson
Patented Case
View Patent ↗
Granted: Oct 9, 1990
Filed: Mar 7, 1988
Inventor
Richard K. Thompson
Assignee (at issue)
Aspen Laboratories, 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.