Granted Patent
Utility
US 4,480,095 · App. 05/970,413
Hexahydropyrimidines and corresponding linear polyamines
Inventor:
Bernardus A. Oude Alink
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Dec 18, 1978
Inventor
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.