Granted Patent
Utility
US 5,857,347 · App. 08/811,025
Refrigeration system and a separator therefor
Inventors:
Ketil Haugen, Håkan Ohlsson, Per Persson
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Mar 4, 1997
Inventors
Ketil Haugen
Håkan Ohlsson
Per Persson
Assignee (at issue)
Frigoscandia Equipment AB
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.