Granted Patent
Utility
US 4,426,329 · App. 06/288,852
One step modification and oxidation of waxes
Inventors:
John H. Woods, Charles E. Laughlin, Toby R. Graves
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Jul 31, 1981
Inventors
John H. Woods
Charles E. Laughlin
Toby R. Graves
Assignee (at issue)
Petrolite 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.