Granted Patent
Utility
US 4,918,168 · App. 07/124,500
Process for the continuous diazotization of amines in a multi-stage reactor
Inventors:
Nickolas J. Stepaniuk, Bruce J. Lamb
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Nov 24, 1987
Inventors
Nickolas J. Stepaniuk
Bruce J. Lamb
Assignee (at issue)
MALLINCKRODT LLC
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.