Granted Patent
Utility
US 5,522,605 · App. 08/288,524
Collet chuck having parpallel force loaded bearing
Inventors:
David L. Lewis, Keith Wiggins
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Aug 10, 1994
Inventors
David L. Lewis
Keith Wiggins
Assignee (at issue)
KENNAMETAL 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.