Granted Patent
Utility
US 4,437,675 · App. 06/397,622
Chuck with centrifugal force compensation
Inventor:
C. Fred Koenig, III
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Jul 12, 1982
Inventor
C. Fred Koenig, III
Assignee (at issue)
Warner & Swasey
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.