Granted Patent
Utility
US 5,340,129 · App. 08/006,814
Saw blade retention system
Inventor:
David W. Wright
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Jan 21, 1993
Inventor
David W. Wright
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.