Granted Patent
Utility
US 4,265,384 · App. 06/113,804
Air bar having asymmetrical inlet
Inventor:
Robert A. Daane
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Jan 21, 1980
Inventor
Robert A. Daane
Assignee (at issue)
W. R. Grace & Co.
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.