Granted Patent
Utility
US 5,853,555 · App. 08/832,266
Synthesis of onium hydroxides from onium salts
Inventors:
Hossein Sharifian, David R. Hulme
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Apr 3, 1997
Inventors
Hossein Sharifian
David R. Hulme
Assignee (at issue)
SACHEM, INC.
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.