Granted Patent
Utility
US 5,203,685 · App. 07/903,045
Piston unloader arrangement for screw compressors
Inventors:
Garry E. Andersen, Peter J. Linnert
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Jun 23, 1992
Inventors
Garry E. Andersen
Peter J. Linnert
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.