Granted Patent
Utility
US 4,255,393 · App. 06/034,309
Method of precipitating ADU
Inventor:
Peter Chiang
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Apr 30, 1979
Inventor
Peter Chiang
Assignee (at issue)
Westinghouse Electric Company LLC
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.