Granted Patent
Utility
US 5,194,100 · App. 07/653,022
Heat treatable chromium
Inventors:
John DeHaven, John Dash
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Feb 8, 1991
Inventors
John DeHaven
John Dash
Assignee (at issue)
Blount, 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.