Granted Patent
Utility
US 4,696,803 · App. 06/829,347
Treatment of gas streams for removal of acid gases
Inventor:
Edward C. Y. Nieh
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Feb 13, 1986
Inventor
Edward C. Y. Nieh
Assignee (at issue)
Texaco Inc.
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.