Granted Patent
Utility
US 4,465,871 · App. 06/521,479
Preparation of 2-t-butyl-4-alkoxy- and 4-hydroxyphenols
Inventors:
Bruce E. Firth, Terry J. Rosen
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Aug 8, 1983
Inventors
Bruce E. Firth
Terry J. Rosen
Assignee (at issue)
UOP LLC
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.