Granted Patent
Utility
US 4,185,385 · App. 05/850,632
Control system for dental drills
Inventor:
Anton Simor
Patented Case
View Patent ↗
Granted: Jan 29, 1980
Filed: Nov 11, 1977
Inventor
Anton Simor
Assignee (at issue)
Den-tal-ez of Canada Ltd.
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.