Granted Patent
Utility
US 5,556,271 · App. 08/346,244
Valve system for capacity control of a screw compressor and method of manufacturing such valves
Inventors:
Jan A. Zuercher, John Q. Richardson, Arthur R. Legault
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Nov 23, 1994
Inventors
Jan A. Zuercher
John Q. Richardson
Arthur R. Legault
Assignee (at issue)
COLTEC INDUSTRIES, 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.