Granted Patent
Utility
US 4,425,817 · App. 06/244,178
Lubrication system for a power take off assembly and a drive shaft therefor
Inventors:
Calvin G. Wells, Joseph L. Malkowski
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Mar 16, 1981
Inventors
Calvin G. Wells
Joseph L. Malkowski
Assignee (at issue)
Rockwell International 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.