Granted Patent
Utility
US 4,723,219 · App. 06/747,809
Programmed path for automatic tool retraction and return responsive to degradation threshold
Inventors:
Peter J. Beyer, Timothy F. Murphy, Donald W. Heckel
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Jun 21, 1985
Inventors
Peter J. Beyer
Timothy F. Murphy
Donald W. Heckel
Assignee (at issue)
AMCA International 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.