Granted Patent
Utility
US 6,409,490 · App. 09/864,234
Rotary screw compressor with slide valve and slide stop guidance bushings
Inventors:
Paul Nemit, Jr., Charles M. Beall, Jr.
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: May 25, 2001
Inventors
Paul Nemit, Jr.
Charles M. Beall, Jr.
Assignee (at issue)
York 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.