Granted Patent
Utility
US 5,911,421 · App. 08/847,994
Sealed collet having improved radial flexibility for facilitating removal from a locknut
Inventor:
Jack W. Steele
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Apr 18, 1997
Inventor
Jack W. Steele
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.