Granted Patent
Utility
US 4,485,081 · App. 06/470,349
Hydrogen chloride recovery process
Inventor:
Angelo J. Magistro
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Feb 28, 1983
Inventor
Angelo J. Magistro
Assignee (at issue)
B. F. Goodrich 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.