Granted Patent
Utility
US 4,323,430 · App. 06/244,489
Process for separating ammonia and acid gases from streams containing fixed ammonia salts
Inventors:
Donald Glassman, Edward E. Maier
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Mar 16, 1981
Inventors
Donald Glassman
Edward E. Maier
Assignee (at issue)
United States Steel Corporation
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.