Granted Patent
Utility
US 4,421,111 · App. 06/353,917
Low-voltage surgical cast cutter with vacuum exhaust of debris
Inventor:
Neil S. Rothman
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Mar 2, 1982
Inventor
Neil S. Rothman
Assignee (at issue)
BLACK & DECKER 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.