Granted Patent
Utility
US 4,264,525 · App. 06/053,888
Stepwise reduction of p-nitrophenol
Inventor:
John C. Huber
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Jul 2, 1979
Inventor
John C. Huber
Assignee (at issue)
PENICK 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.