Granted Patent
Utility
US 5,662,514 · App. 08/437,144
Method for producing cutting blades
Inventors:
John Edward Masseth, Joseph Bradfield
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: May 5, 1995
Inventors
John Edward Masseth
Joseph Bradfield
Assignee (at issue)
DANA LIMITED
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.