Granted Patent
Utility
US 5,096,469 · App. 07/611,495
Adsorptive gas separator with inertial energy exchange
Inventor:
Bowie G. Keefer
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Nov 13, 1990
Inventor
Bowie G. Keefer
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.