Granted Patent
Utility
US 4,401,556 · App. 06/367,783
Midbarrel hydrocracking
Inventors:
Richard D. Bezman, Jule A. Rabo
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Apr 12, 1982
Inventors
Richard D. Bezman
Jule A. Rabo
Assignee (at issue)
Union Carbide 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.