Granted Patent
Utility
US 5,403,337 · App. 08/271,047
Retractable-bladed surgical scalpel
Inventor:
David Platts
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Jul 5, 1994
Inventor
David Platts
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.