Granted Patent
Utility
US 4,678,638 · App. 06/856,267
Highly branched amino hexahydropyridines
Inventors:
Benjamin T. Outlaw, Bernardus A. Oude Alink
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Apr 28, 1986
Inventors
Benjamin T. Outlaw
Bernardus A. Oude Alink
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.