Granted Patent
Utility
US 5,228,355 · App. 07/792,603
PTO unit for a transmission or the like including a lubrication system operable only when the PTO is in operation
Inventors:
Wallace Eric Smith, Ronald D. Kruger, Eric W. Anderson
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Nov 15, 1991
Inventors
Wallace Eric Smith
Ronald D. Kruger
Eric W. Anderson
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.