Granted Patent
Utility
US 6,315,841 · App. 09/476,032
Induction hardened forged gear and process for preparing same
Inventors:
James Steven Fisher, Roland C. Smith
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Dec 31, 1999
Inventors
James Steven Fisher
Roland C. Smith
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.