Granted Patent
Utility
US 4,785,807 · App. 07/017,876
Electrosurgical knife
Inventor:
G. Marsden Blanch
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Feb 24, 1987
Inventor
G. Marsden Blanch
Assignee (at issue)
American Medical Products
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.