Granted Patent
Utility
US 6,769,184 · App. 09/120,778
Low friction rotary knife
Inventor:
Jeffrey A. Whited
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Jul 22, 1998
Inventor
Jeffrey A. Whited
Assignee (at issue)
Bettcher Industries, 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.