Granted Patent
Utility
US 5,493,031 · App. 08/260,637
N-hydroxysuccinimide monohydrate
Inventor:
Cheruthur Govindan
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Jun 16, 1994
Inventor
Cheruthur Govindan
Assignee (at issue)
PPG Industries, 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.