Granted Patent
Utility
US 5,572,882 · App. 08/505,496
Low pressure air cycle cooling device
Inventor:
James P. Schafer
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Jul 21, 1995
Inventor
James P. Schafer
Assignee (at issue)
Johnson Service Company
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.