Granted Patent
Utility
US 5,940,972 · App. 08/898,761
Rotary knife blade
Inventors:
Robert Baris, Jeffrey A. Whited
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jul 23, 1997
Inventors
Robert Baris
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.