Granted Patent
Utility
US 5,558,747 · App. 08/552,434
Process for azeotropic distillation of aqueous chloral mixtures
Inventors:
Kevin A. Brady, Lester Friedmann
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Nov 3, 1995
Inventors
Kevin A. Brady
Lester Friedmann
Assignee (at issue)
AMVAC Chemical 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.