Granted Patent
Utility
US 4,553,313 · App. 06/452,539
System to automatically change tool blocks used on turning machines
Inventors:
Rudolph R. Winter, Verle Propst
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Dec 23, 1982
Inventors
Rudolph R. Winter
Verle Propst
Assignee (at issue)
BorgWarner 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.