Granted Patent
Utility
US 4,465,244 · App. 06/334,822
Expanding core chuck
Inventor:
Gerald W. Karr
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Dec 28, 1981
Inventor
Gerald W. Karr
Assignee (at issue)
Beloit 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.