Granted Patent
Utility
US 4,358,270 · App. 06/150,058
Dental instrument retraction activator
Inventor:
Manfred Schmidt
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: May 15, 1980
Inventor
Manfred Schmidt
Assignee (at issue)
Sybron Corporation
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.