Granted Patent
Utility
US 4,283,572 · App. 06/107,690
Conversion of alkyl phenyl ether to alkylphenol
Inventor:
James D. Klicker
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Dec 27, 1979
Inventor
James D. Klicker
Assignee (at issue)
BorgWarner Inc.
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.