Granted Patent
Utility
US 4,655,939 · App. 06/785,651
Locomotive oil filter
Inventor:
Donald Moser
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Oct 9, 1985
Inventor
Donald Moser
Assignee (at issue)
James River 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.