Granted Patent
Utility
US 5,348,570 · App. 08/042,934
Axle housing breather
Inventors:
Malcolm F. Ruppert, Jr., Eric Chih-Fang Liu
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Apr 5, 1993
Inventors
Malcolm F. Ruppert, Jr.
Eric Chih-Fang Liu
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.