Granted Patent
Utility
US 5,348,402 · App. 08/042,413
Bearing with specially shaped lands
Inventor:
James S. Porter
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Apr 2, 1993
Inventor
James S. Porter
Assignee (at issue)
McGill Manufacturing Company
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.