Granted Patent
Utility
US 5,277,541 · App. 07/813,241
Vaned shroud for centrifugal compressor
Inventor:
Donald L. Palmer
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: Dec 23, 1991
Inventor
Donald L. Palmer
Assignee (at issue)
AlliedSignal, 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.