Granted Patent
Utility
US 5,378,385 · App. 07/455,691
Partially fluorinated silicone refrigeration lubricants
Inventors:
Raymond H. Thomas, David P. Wilson, Hang T. Pham, John W. Pelava
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Dec 21, 1989
Inventors
Raymond H. Thomas
David P. Wilson
Hang T. Pham
John W. Pelava
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.