Granted Patent
Utility
US 5,334,366 · App. 08/001,152
Transition alumina and method for its production
Inventors:
Anthony J. Perrotta, Randall B. Minnick
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Jan 7, 1993
Inventors
Anthony J. Perrotta
Randall B. Minnick
Assignee (at issue)
Aluminum Company of America
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.