Granted Patent
Utility
US 4,238,417 · App. 06/066,520
Decomposition of cumene hydroperoxide and recovery of boron trifluoride catalyst
Inventors:
Richard G. Austin, Wayne R. Pretzer, Thaddeus P. Kobylinski
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Aug 15, 1979
Inventors
Richard G. Austin
Wayne R. Pretzer
Thaddeus P. Kobylinski
Assignee (at issue)
Gulf Research & Development 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.