Granted Patent
Utility
US 5,201,648 · App. 07/938,801
Screw compressor mechanical oil shutoff arrangement
Inventor:
Rodney L. Lakowske
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Sep 1, 1992
Inventor
Rodney L. Lakowske
Assignee (at issue)
American Standard Inc.
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.