Granted Patent
Utility
US 6,422,786 · App. 09/494,871
Air-cooled gearbox assembly
Inventor:
Steven Grant
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jan 31, 2000
Inventor
Steven Grant
Assignee (at issue)
Wacker Corporation
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.