Granted Patent
Utility
US 5,453,107 · App. 08/198,125
Air and gas cooling and filtration apparatus
Inventor:
Benjamin Y. H. Liu
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Feb 17, 1994
Inventor
Benjamin Y. H. Liu
Assignee (at issue)
MSP CORPORATION
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.