Granted Patent
Utility
US 5,632,805 · App. 08/463,576
Semipermeable membrane dryer for air compressor system
Inventor:
Michael K. Woodard
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jun 5, 1995
Inventor
Michael K. Woodard
Assignee (at issue)
Newport News Shipbuilding and Dry Dock 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.