Granted Patent
Utility
US 4,549,847 · App. 06/438,990
High area ratio, variable entrance geometry compressor diffuser
Inventors:
Sigmunn Stroem, Rolf J. Mowill
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Nov 3, 1982
Inventors
Sigmunn Stroem
Rolf J. Mowill
Assignee (at issue)
A/S Kongsberg Vapenfabrikk
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.