Granted Patent
Utility
US 5,527,400 · App. 08/337,969
Method and apparatus for machining hardened parts apparatus for machining hardened parts
Inventors:
Roland C. Smith, James Steven Fisher
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Nov 14, 1994
Inventors
Roland C. Smith
James Steven Fisher
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.